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问题 选择题

When I arrived at the cinema, the movie___________for10 minutes.

A．has begun

B．had begun

C．had been on

D．has been

答案

答案：C

题目分析：句意：当我们到达电影院时，这部电影已经开始１０分钟了。结合语境可知下文描述的是一直持续到过去某时的动作，故用过去完成时态。Begin表示瞬间动作，不能和表示一段时间的时间状语连用，故选C。

问答题

有①

16
8
O、
17
8
O、
18
8
O②H2、D2、T2③石墨、金刚石④
1
1
H、
2
1
H、
3
1
H四组微粒或物质．互为同位素的是（填序号）______；互为同素异形体的是（填序号）______；有①和④的微粒可组成______种相对分子质量不同的三原子化合物．
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填空题
用所给的词填空完成短文。
a, near, Kate's, behind, see, the, are, look, His, teachers, He, workers, likes
     Look at the bedroom. It's 1 _________. A computer is 2 __________ the window. 3 _______
computer is very new. You can 4 _________ some flowers in the room. They are very nice. There 
5 _______ some books on the desk. Kate often does her homework in the room. 6_______ father
and mother are 7 _______ Her mother teaches Chinese and her father teaches English. Kate has a
brother. 8______ name is Jack. 9 _______ isn't a student. 10 ______ is only 8 years old. Kate.
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