There is a policeman _____ the bus. He is watching the traffic.
| A．in front of | B．in the front of |
| C．in the front | D．the front |
People should not cross the street ______ the traffic lights turned green.
A. when B. until C. after
---Did he ______ wear glasses? --- No, he _________.
A. used to; isn’t
B. use to; didn’t
C. use to, wasn’t
I used to be afraid of ________ a speech in public.
A. giving B. to give C. give
---Excuse me, do you know ________ to the post office?
--- Sorry, I am not sure.
A.where to get
B.what to get
C. how to get
-- Could you please tell me_________________?
--- They are over there.
A.where the restrooms are
B.where are the restrooms
C.where is the restroom