The boy ran into the house, ____________.

    A. hunger and thirsty           B. hungry and thirsty  

    C. hungrily and thirstily         D. hunger and thirstiness

 Even though the scientist ______ the experiment for three months, it isn’t finished yet, since it is too challenging.

    A. has been conducting                B. has conducted

    C. had conducted                     D. had been conducting

 John's success has nothing to do with good luck. It is years of hard work        has made him what he is today.
    A. why                         B. when                       C. which                     D. that

 ______ the day went on, the weather got worse.

    A. With                  B. Since                 C. While                D. As

--- Hi, Tom. Any idea where Jane is?

--- She ______ in the classroom. I saw her there just now.

　 A. shall be　　　B. should have been　　　 　 C. must be　　　　　D. might have been

 She was so absent-minded while typing that she ______ the entire second paragraph.

    A. gave out              B. found out              C. put out                   D. left out

 Only when one grows old enough        able to understand what love really means．

    A. he was    B. he will be    C. will he be     D. was he

 The passer-by jumped into the cold water to save the ________ boy, who cried for help, but it was too late and the boy was ________ at last.

    A. drowning; drowned        B. drowned; drowning 

    C. drowning; drowning        D. drowned; drowned

 __________ his great achievements in science, he still worked hard to do better.

    A. Even if   B. Despite    C. Because of    D. Although

---May I borrow your bicycle for a day, David?

---Oh, sorry! My bicycle is not　　　 ，and it is being mended.

　 A. legal　 B. available　 C. positive　 D. constant