In those days, our _____concern was to provide people who were stopped by the snow storm with food and health care.

A. normal            B. constant            C. permanent          D. primary

You don't have to know the name of the author to find a book. You    find the book by the title.                                                                                                   

A. must                  B. need          C. can                  D. would

When asked     they needed most，the kids said they wanted to feel important and loved.

A. what                 B. why          C. whom               D. which

    the project as planned，we'll have to work two more hours a day.

A. Completing            B. Complete       C. Completed           D. To complete

The growing speed of a plant is influenced by a number of factors，    are beyond our control.

A. most of them        B. most of which    C. most of what    D. most of that

I called Hannah many times yesterday evening，but I couldn't get through. Her brother    on the phone all the time!

A. was talking             B. has been talking               C. has talked             D. talked

       the Internet is of great help. I don't think it's a good idea to spend too much time on it.

A. If                     B. While         C. Because              D. As

Susan wants to be independent of her parents. She tried    alone，but she didn't like it and moved back home.

A. living                   B. to live         C. to be living            D. having lived

─Do you have any problems if you    this job?

—Well，I'm thinking about the salary.

A. offer                  B. will offer       C. are offered          D. will be offered

     “This Friday we'll have the yearly Egg Drop Challenge，”said our science teacher，Mr. Baker .“You can work alone or with a partner.”

       My friend，Cassie , and I smiled at each other. We always worked on projects   1  .

       The  2  of the Challenge was simple—to build a protective container to keep an egg from breaking when   3 the stadium wall.

       I made my sandwich that afternoon while waiting for Cassie.   4 the butter-cream gave me an idea.

“I have a brilliant design for our   5 container!” I said when Cassie arrived. “We can  6  the egg with some butter-cream.”

 “Why not put the egg in a basket with a parachute(降落傘)  7  ?”Cassie rolled her eyes. “The parachute is better than that stupid idea.”

I couldn't believe it. Of course we'd had our little  8  in the past，but she'd never called any of my ideas“  9  ”before.

“Then I'll build mine and you build yours!”

  10  words had been out，our friendship was challenged.

When Friday finally arrived，I had to  11  Cassie's Egg Force One looked pretty good.

  12  ，my Egg-cellent Egg Cream didn't look quite scientific. We kids carried our containers up three stadium steps and dropped them over the side wall. Those whose eggs broke were out; those whose eggs survived  13   three more steps and dropped them again. This would go on still the last egg broke.

After four rounds，only Cassie and I were   14  .I let go of my box. I heard someone say “ew” after seconds. Had my egg broken? I raced down the   15  .The sidewalk was dotted with egg shells(蛋殼)from those  16  drops. Finally I found my little Egg-cellent Egg Cream.

“That looks like egg drop soup, Laura ,  ”Cassie said. She was holding her Egg Force One. My 17   raced. Had she won? I looked at her basket.   18   .

       “My egg bounced   19   ,”she explained, pointing to a broken shell.

        “A tie(平局),”Mr. Baker said.

        Cassie looked at me, and her glare   20   . I laughed. She smiled...

1. A. patiently          B. silently               C. together        D. alone

2. A. function          B. goal                C. reason        D. result

3. A. rolled down       B. pushed against        C. thrown at     D. dropped over

4. A. Spreading         B. Boiling               C. Baking         D. Holding

5. A. butter            B. sandwich            C. cream        D. egg

6. A. protect           B. replace              C. carry         D. mix

7.    A. followed            B. covered                    C. attached            D. supported

8.    A. ideas                 B. fights                             C. worries            D. challenges

9.    A. wrong               B. stupid                       C. brilliant              D. scientific

10.   A. Since                B. While                      C. But                   D. And

11.   A. explain              B. deny                        C. admit                D. prove

12.   A. Therefore          B. Anyway                    C. Otherwise         D. Besides

13.   A. paced down       B. turned around           C. walked up         D. went back

14.   A. left                   B. wanted                     C. chosen                     D. discovered

15.   A. steps                 B. way                         C. wall                  D. sidewalk

16.   A. intended            B. unexpected               C. failed                D. desired

17.   A. eyes                  B. hands                       C. feet                   D. heart

18.   A. Lost                  B. Dirty                        C. Broken              D. Empty      

19.   A. around                     B. out                           C. in                            D. down

20.   A. returned            B. remained                  C. increased           D. softened