A 456——460

456 This year we’ll have an eight________ (week)holiday.

[答案解析]: weeks’今年我们将会有一个八周的假期。

[考点]：名词所有格

457 Before she got to school, I hadfinished___________ (clean) the classroom..

[答案解析]: cleaning她到学校之前，我就已经打扫完教室了。

[考点]：finisheddoing something完成做某事

458 If our teacher_____________ (not come) tomorrow,we will go to see her.

[答案解析]: doesn’tcome如果我们老师明天不来，我们就去看她。

[考点]：条件句

459 Though Lei Feng ________________ (die) for manyyears, he is still in our heart.

[答案解析]: hasbeen dead尽管雷锋已经去世多年，但是他仍然活在我们心中。

[考点]：现在完成时

460 This story happened at the beginning ofthe_________________ (21) century.

[答案解析]: 21st这个故事发生在21世纪初。

[考点]：基数词变为序数词