Question

请帮我做几道英语动词选择题并详细分析一下。。。谢谢！！！

1.I won't lend you the book until I ( ) reading it.
A. will finish B. have finished C. shall finished D. will have finished
2.Helen ( ) her keys in the room so she had to wait until her husband ( ) home.
A.has left,come B.left,had come C. had left,came D. had left, would come
3.The CCTV( ) English programme ever since 1977.
A. broadcast B.were broadcasting
C. has been broadcast D. has broadcast
4.They sugested ( ) the truth to her.
A. not to tell B. should not tell C.not tell D. not telling
5.Lisa( ) a book about China last year, but I don't know whether she has finished it.
A. wrote B. has written C. was writing D. had written
这五句话 分别是什么时态。。。

Answer 1

B not until = if ....not.....
原句可写为：I will lend you the book if i have finished reading it.
可理解为 主将从现。I 后接的是主句是将来时UNTIL 后是从句是现在时。

C so she had to wait 因为前面的动作发生在这个动作之前，所以前一个动作应是过去的过去，是过去完成时，排除AB ,CD的区别和上一题中的理解类似。。

D ever since 1977.由此可知应该选现在完成时，排除AB
The CCTV has broadcast English programme ....
The English programme has been broadcast on the CCTV.
上两句都是对的，C是被动形式但错了。

C suggest sb. (should) do sth
是虚拟句

C 感觉应该是选它，首先last year, 排除B D 后文中说but I don't know whether she has finished it
说明这个动作或许一直在进行，若选A 则表明动作已完成，而且动词ING 形式并非一定代表过去进行时，它还可以表示过去的连续动作。。。。

Answer 2

1 B 2 C 3 D 4 A 5 C

Answer 3

1 2 5是过去时
其余的我不知道