Question

1.Mary isn't here.She ____ (go) to the shop. 2.I ____ (buy) the book yesterday.

3.____ you ____ (stay) here till next week?
4.Have you seen the play ____ (show) in People's Theatre?
5.The ad for a new car is the best one that I have ever ____ (see).
6.What ____ you ___ (do) at that time last week?
7.look , what ____ they ____ (do) in the park?
8.While the boy ____ (watch) TV , his cat jumped down from the table.
9.Liu Xiang ____ (win) the gold medal at the 2004 Olympics.
10.When I saw him , he ____ (wait) for the bus.

Answer 1

1 has gone （ 根据前半句可知人不在这里，故用现在完成‘ 去了某地了
2 bought ( yesterday 昨天，一般过去时
3 Will , stay
或：
Are , going to stay ( next wek下周，一般将来时
4 showing 现在分词作状语。
5 seen 现在完成时（ have + 动词的过去分词
6 did, do ( last week 上周。用一般过去时
7 are , doing ( look是现在进行时的标志
8 was watching ( while 后接进行时，根据, jumped可知是过去进行时
9 won ( 2004 已过去，故用一般过去时
10 was watcing ( 根据： when ... 可知用过去进行时

祝你假期愉快！加油！不明白再问！如果帮到你，请采纳，谢谢！

Answer 2

为你解答。
1、Mary isn't here. She (has gone) to the shop.
2、I (bought) the book yesterday.
3、(Will) you (stay) here till next week?
4、Have you seen the play (shown) in People's Theatre?
5、The ad for a new car is the best one that I have ever (seen).
6、What (were) you (doing) at that time last week?
7、Look , what (are) they (doing) in the park?
8、While the boy (were watching) TV , his cat jumped down from the table.
9、Liu Xiang (won) the gold medal at the 2004 Olympics.
10、When I saw him , he (was waiting) for the bus.