She looks very busy. I want to help her, but I don’t know________.

A. how to do    B. what to do    C. what to do it

Mr. Black talked about his son with the teacher____ the phone.

A.. on    B. in    C. with

—Could you please ____ your room, Tom? — __________.

A. cleaning, No problem

B. clean, Certainly

C. clean, No I couldn’t

— Why are you unhappy, Kate?

— I didn’t finish my homework again. I’m afraid Miss Gao will be ___ me.

  A. angry with    B. friendly to    C. proud of

What’s happening _______ Ms.Green?

A. on    B. with    C. to

Amy was reading a book _____ I came in.

A. when    B. while    C. because

I was late today because my alarm clock didn’t____

A. run off    B. go off    C. give out

My uncle ____ books in the room at this time yesterday.

A. was seeing    B. is reading    C. was reading

—I feel really tired..  —______

A. Lucky you!

B. You’d better work harder.

C. Why not go and have a rest?

He didn’t come back____ 7 o’clock last night.

A．till    B. until    C. at