It is dangerous ____ you  ______ a close look at the tiger in the zoo.

A. for , to have  B. for you, take

C. of  ,to have   D. of  , take

It is silly of you  ________ others for their mistakes.

A. to forgive  B. not to forgive

C. forgive to  D. to not forgive

This problem worried her so much that she didn’t know ___________ with it..

A. what she can do   B. what she could deal

C.  how to do        D. how to deal

It _______ ten years since my sister ______ an English teacher.

A. has been, is  B. is, became

C. have been, was D. is , becomes

Could you tell us _____ you are getting on well with your classmates?

A. that  B. if    C. what   D. how

----Look! Our Chinese teacher, Mr Wang, is playing badminton there.

----No, it ________ be Mr Wang,. He has gone to Shanghai for a meeting.

A. can’t        B. mustn’t

C.  shouldn’t   D. may not

____Tom ______ his friend know about types of personality.

A. Either ,or   B. Not only, but also

C. Both, and    D. Neither, nor

----Have you ever __________ Peter Tchaikovsky before?

----Oh,. A Russian composer of classical music.

A. heard of   B.  listened to  C. heard   D. heard from

---How much difficulty did you have________________ this physics problem?

---_____________. It's quite easy.

A. to solve, Nothing    B. solving; None

C. to solve, None       D. solving; Nothing

----______number of cars on the roads is growing too fast.

----I agree with you. ______ number of problems have appeared already.

A. A, A      B. The , The    C. The ,a   D. A, the