20% of the students of Nan Shan Senior High the school colorful clubs so far.
| A．has joined | B．has been joined |
| C．have joined | D．have been joined |
－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 |
____ to everyone the importance and value of these historic sites, the government has strengthened regulations to protect them.
| A．To stress | B．Stressing |
| C．Having stressed | D．Stressed |
—Mary’s been offered a job in a university, but she doesn’t want to take it.
—_______? It’s a very good chance.
| A．Guess what | B．So what |
| C．Who care | D．But why |
Out of the train_______, well-dressed and waving to the crowd.
| A．a tall man stepped |
| B．was stepping a tall man |
| C．did a tall man step |
| D．stepped a tall man |