Susan wanted to be independent of her parents. She tried _____ alone, but she didn’t like it and moved back home.
| A．living | B．to live | C．to be living | D．having lived |
--He must have received a good education in his childhood, ________ he?
--________, he is polite and well-behaved and acts like a gentleman.
| A．didn’t; Yes | B．has; Yes | C．has; No | D．didn’t; No |
An increasing number of countries have been ________ China as a threatening power recently.
| A．looking up | B．looking at | C．looking on | D．looking for |
All the citizens here strongly insist those found ________ “harmful” advertisement in the streets ________ punished strictly.
| A．putting up; will | B．to put up; should be |
| C．being put up | D．putting up; be |
Scientists are convinced ________ the positive effect of laughter ________ physical and mental health.
| A．of; at | B．on; at | C．by; in | D．of; on |
--May I speak to your manager at four o’clock this afternoon?
--I’m sorry. He ________ to a conference long before then.
| A．will have gone | B．had gone | C．would go | D．has gone |