Not until I began to work ________ how much time I had wasted.
| A．didn’t I realize | B．did I realize | C．I didn’t realize | D．I realize |
He was _____ by his grandparents, so his parents seemed to be strangers to him.
| A．brought out | B．brought down | C．brought in | D．brought up |
Mr. Smith was thinking about how to explain to the manager why he was late for work, when a good idea ______ to him.
| A．happened | B．brought | C．occurred | D．struck |
No one answered the phone. They___________ to the cinema together.
| A．must go | B．may go | C．could go | D．must have gone |
Your hand is dirty. It needs ____________.
| A．to wash | B．to be washing | C． being washed | D．washing |
I couldn’t do my homework with all that noise .
| A．going on | B．goes on | C．went on | D．to go on |