—No wonder you caught a cold. You _______out last night without a coat.
—I know how silly I was.
| A．shouldn’t have gone | B．mustn’t have gone |
| C．couldn’t have gone | D．mightn’t have gone |
Hard work and lack of sleep have _____ her beauty and youth in recent years.
| A．worn out | B．tried out |
| C．made out | D．sent out |
We shall not start the project until it __________ by the committee.
| A．will be approved | B．approves |
| C．has been approved | D．is to approve |
The British team, ______ several attempts to climb Yulong Xueshan, decided to have another try this summer.
| A．making | B．having made | C．to make | D．made |
－Mary, how did your Math test go?
－I had thought I _________, but in fact I came in the top 10 in my class.
| A．should have failed | B．couldn’t have failed |
| C．might have failed | D．shouldn’t have failed |
—Guess what! We’ve got our visas for a short-term visit to the UK this summer.
—How nice! You ____ a different culture then.
| A．will be experiencing | B．have experienced |
| C．have been experiencing | D．will have experienced |