题目内容：

1.He_____they didn't start early they wouldn't catch the first bus.
A.said that if B.asked if C.asked whether D.said that whether
2.Mary's mother asked her__________
A.that whether she had finished her homework
B.if she has finished her homework
C.if she had finished her homework
D.that if she had finished her homework
3.Do you know____?
A.what is he doing B.what he is doing
不光要有答案··最好还要有解释·· 注意喽··后两道是有难度的··