________ we move the picture over there? Do you think it will look better?

A. If only　 　 B. What if　　 　 C. As if　　 　　 D. Even if

The police ________ to do business with the man to find out whether his goods were from legal sources.

A. remembered 　　　B. pretended　 　　　C. deserved 　　 D. preferred

Grain eaten by country people is _____ the fruit and vegetables they eat.

A. the twice weight of　　　　　　　　 B. twice the weight of　

C. as twice heavy as　　　　　　　　 D. twice as heavier as

Every evening after dinner, if not _________ from work, I will spend some time walking my dogs.

　 A. being tired　　 B. tiring　　 C. tired　　 D. to be tired

—Could you be so kind as to close the window?

—　　　 .

A. With pleasure　 　　　　B. Go ahead　 　　C. Yes, please　 　　D. That’s OK.

Who has found out the answer _____ this question?

　 A. of 　 B. for

　 C. to 　 D. about

21.  Robert is said ____ abroad, but I don’t know what country he studied in.
A. to have studied　　　　　　　　　　　　 B. to study
C. to be studying　　　　　　　　　　　　　 D. to have been studying

It ________ me that I could buy the admission ticket of the exhibition at the discount of 50% with my student card, ________ made me extremely excited.

A. happened to; that　　　　　　　　　　　　　　 B. occurred to; it

C. happened to; which　　　　　　　　　　　　　　 D. occurred to; which

Hearing the news, he rushed out, ______ the book ______ on the table and disappeared into the distance.

A. left; lain open　　　　 B. leaving; lying open

C. leaving; lie opened　　 D. left; lay opened

I have been told that the new law will come into ________ on January 1st next year.

A．effect　　　B．use　　　　C．service　 　 D．existence