题目内容
Teenagers _____their health because they play computer games too much.
| A．have damaged | B．are damaging |
| C．damaged | D．will damage |
B
解析试题分析:考查动词时态。因为后面because引导的状语从句用一般现在时，所以排除C、D选项。现在完成时表示已经发生或完成的动作，而现在进行时表示一直进行的动作，从语境判断在玩电脑游戏时，就一直在损害着自己的健康，所以B选项正确。句意：青少年在损害着自己的健康，因为他们玩太多的电脑游戏。
考点：考查动词时态。
The famous reporter, who is said to have gone back to America last year, _____in China for almost twenty years.
| A．lived | B．was living | C．has lived | D．had lived |
—What do you think of his speech at the court?
—Er..., sorry, I ________ about something else.
| A．had thought | B．thought |
| C．was thinking | D．have been thinking |
Some modern teaching equipment as well as hundreds of computers ________to ten Hope Schools in South China
| A．were sent | B．was sent | C．have sent | D．had been sent |
----I wonder what makes you a successful manager.
----I ______ as a waiter for five years, which contributes a lot to my today’s work.
| A．serve | B．have served |
| C．had served | D．served |
--- Look!Somebody ___ the sofa.
--- Well,it wasn’t me. I didn’t do it.
| A．is cleaning | B．was cleaning |
| C．has cleaned | D．had cleaned |
Since Jack was laid off from his job three months ago, he a new one, but without luck.
| A．looked for | B．bad looked for |
| C．is looking for | D．has been loking for |
Jim a skilled worker for almost six years. He is an experienced manager now.
| A．has been | B．had been | C．is | D．was |