1 . The horrific tragedy __________ if the architect __________ more careful with the way buildings were constructed.

A．ought to be avoided; was going to be	B．could have been avoided; had been
C．may have avoided; has been	D．will be avoided; will have been

2 . 我要是当时没有答应参加吉姆的聚会就好了，因为今晚我必须做一些额外的工作。（wish后的虚拟语气）
________________ Jim’s party, for I have to do some extra work tonight.

3 . 如果我们昨天赶上飞机的话，现在我们可能正在海滩享受我们的假日呢。
If we ________________ the flight yesterday, we ________________ our holiday on the beach now.

4 . 他说起长城来就好像他以前去过那里似的。
He talked about the Great Wall as if he________before.

5 . 我不是一名宇航员。如果我有机会去月球，我会迫不及待地接受它。(if)
I am not an astronaut. ________.

6 . 若不是袁隆平，世界上的粮食就不够养活这么多人。(虚拟语气) (汉译英)

7 . 如果你参考了这些失败经验的话，就不会在考试中犯下如此的错误。（汉译英）

8 . 她谈论着奥运会上的激动人心的时刻，好像她在现场一样。
She talked about the exciting moments at the Olympics ________ on the spot.

9 . 外面天气真冷，要是现在能喝到一碗老妈煮的热汤，一定能立即提升我的心情。（sure）(汉译英)

10 . _______________ the expense, I would go abroad now.
如果不是因为费用问题，我现在就出国了。