-- The terrible accident is under investigation.

-- Actually, quicker action ________ those workers trapped in the mine.

A. might have saved                              B. must have saved

C. should have saved                              D. could have saved

Comparison may make something appear more beautiful than it is when            alone.

       A．to see       B．seeing       C．is seen      D．seen

Yassin’s death was not _________ to stop Hamas’ ability to ________ terror attack.

       A．hoped; go on           B．decided; hold out

       C．intended; break out  D．expected; carry out

At present robots are common in     industry and perhaps they will soon be common in

           home.

       A．the; 不填 B．the; a C．不填; the  D．a(chǎn)n; 不填

—Where _______ Margaret have put the empty bottles?

       —She ______ them away. They must be somewhere.

       A．can; can’t have thrown    B．must; needn’t

       C．must; must have thrown  D．can; must throw

How come you stepped into the lab with your shoes on ? You’re         to take them off before you enter it . I told you so !

       A．expected B．supposed C．forbidden        D．permitted

—John saw a three-year-old child walking alone in a shopping mall , so he took the child home immediately and called the police .

    —But he           have waited with the child until the parents returned .

       A．shouldn’t        B．could       C．would      D．might

They have just formed a car pool ,so today it is Mrs Smith’s turn to            the children from school in the community .

       A．collect     B．take C．receive     D．a(chǎn)ccept

—I’m entering for the 100—meter race.

 —          .

       A．Congratulations              B．Enjoy yourself       

       C．Good luck        D．Wonderful

There is not one of us           wishes to help you . We are doing our best .

       A．who  B．that C．a(chǎn)s     D．but