I asked the tailor to make a small _____ to my trousers because they were too long.
| A．change | B．variation | C．revision | D．alteration |
Lin Tao, who is said to have settled in the UAS recently, ______ in my neighborhood for four years.
| A．lived | B．has lived | C．had lived | D．was living |
If a ball is placed near a fire, the ball will _______.
| A．explore | B．extend | C．exchange | D．expand |
Find information in today’s world is not difficult. The _____ is how you can tell if the information is reliable or not.
| A．ability | B．competition | C．challenge | D．knowledge |
_____ to sunlight for too much time will do harm to one’s skin.
| A．Being exposed | B．Having exposed |
| C．Exposed | D．After being exposed |
To keep healthy, Professor Johnson________ cycling as a regular form of exercise after he retired.
| A．took up | B．caught on | C．carried out | D．made for |