__________ to sunlight for too much time will do harm to one's skin.
| A．Exposed | B．Having exposed |
| C．Being exposed | D．After being exposed |
Ten professors______ the medical team to look into the cause of the disease.
| A．composed | B．consist of | C．make up | D．forms |
What great trouble the boy _____his father to give up smoking!
| A．had to persuade | B．had persuaded |
| C．had persuading | D．had persuade |
“I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.”
| A．must be | B．must have been | C．might be | D．can have been |
Anyone _______ bags, boxes, or whatever, was stopped by the police.
| A．seen carry | B．seen carrying | C．saw to carry | D．saw carrying |
---Why did the policeman question Tom?
---He was ________of taking part in the killing.
| A． doubted | B．suspected | C．charged | D．accused |