初三英语 选择题和翻译句子 跪求~~

Question

She ______ a soldier before she came to work in the factory

A was B has been C had been D is

Tom _______ by the time I ________ there

A has left,got B had left ,arrived C left, arrived D left ,had got

水污染对环境有着很不好的影响

到上个月底，我们已经学了二千多个英语单词

Answer 1

She ______ a soldier before she came to work in the factory
选C。before是过去完成时标志。用had been。
A was B has been C had been D is

Tom _______ by the time I ________ there
选B。by the time是过去完成时标志。
A has left,got B had left ,arrived C left, arrived D left ,had got

水污染对环境有着很不好的影响
Watet pollution has a bad effect on the environment.
到上个月底，我们已经学了二千多个英语单词
We had learnt more than two thousand English words by the end of last month.

望采纳。

Answer 2

1C，过去的过去，用过去完成时
2B，同样的，过去的过去，我到那儿的时候TOM已经走了

Water pollution has a very bad influence to the environment.

By the end of last month, we have already learned more than two thousand English words.

Answer 3

C B
Water polution have a bad influence to environment.
Up to last month ,we had learned over 3000 English words.