31. You see the lightning _____ it happens, but you hear the thunder later.
| A．for an instant | B．on the instant | C．in a instant | D．the instant |
. The question came up at the meeting ______ we had enough money to do it.
| A．whether | B．that | C．if | D．what |
. His suggestion will be _____ to us.
| A．of helpful | B．very help | C．of great benefit | D．of very use |
He can’t _____ breaking the window.
| A．get rid of | B．get away | C．get away with | D．get away from |
. –Where is the factory in which you work?
-It’s about 10 kilometres _______ the city.
A. in north of B. north of C. the north of C. northern of
. When we were young, my brother and I ____stay at home waiting for our mother every evening.
| A．would | B．might | C．should | D．could |