－I enjoyed the food very much.

－I’m glad you like it. Please drop in any time you like.

－____________.

       A．Is it all right?          B．I’m afraid I won’t be free.

       C．Yes, I will.              D．That’s great.

You might as well expect a river to flow backward ____ us carrying out the plan.

A. than stop                 B. as to stop                 C. as stop              D. so as to stop

—Her grandpa passed away yesterday.— ______ .

A．How do you like it?                             B．He was a kind man.

C．Sorry to hear that.                               D．What shall we do?

—What do you think of Zhang Liang Ying's English songs?

     —Very attractive and lively. Almost no other Super Girls can sing ______ at present, I think.  

A. well                B. best                 C. better               D. the best

New ideas sometimes have to wait for years before _____ .   

    A. fully accepted                                    B. having fully accepted

    C. fully accepting                             D. being fully accepted

—The police have caught the murderer.

　　   —Yes, and he admitted ________ his boss on a rainy night seven years ago.

　　A. to kill                     B. to have killed           C. having killed     D. have been killing

We must take measures to protect endangered wildlife _______ it is too late.

       A. now that                  B. as long as                 C. unless               D. before  

—Watch!

—I ____ but ____ I ____ anything unusual.

watched; have watched                              B．have watched; am not seeing

C．was watching; wasn’t seeing                        D．am watching; don’t see

His letter was especially welcome as I ____ from him for long.

A．haven’t heard         B．would not heard      C．hadn’t heard           D．didn’t heard

—Ms Lin looks rather a kind lady.

—But in fact she is cold and hard on us. You ____ believe it!

A．shouldn’t                      B．wouldn’t                C．mustn’t                  D．needn’t