1、-I'm sorry for stepping on your foot.I should have been mo

1、-I'm sorry for stepping on your foot.I should have been more careful.
- ____.It's really nothing.
A.Forget it
B.That's right
C.You're welcome
D.No way
答案是A为什么
2、What you should do is just____the milk until it boils and then turn off the gas.
A.notice
B.watch
C.sense
D.attend
答案是B为什么
3、-A medical team was sent to Japan by air five hours ago.
-So they___have arrived by now.The flight usually takes four hours or so.
A.might
B.could
C.need
D.must
答案是D为什么
4、___to a key university ,students have to work very hard.
A.Being admitted
B.To admit
C.To be admitted
D.Having admitted
答案是C为什么
5、She always keeps the journey in her mind,____she met him for the first time.
A.which
B.that
C.where
D.when
答案是D为什么