rains
raining
is raining
第1题：
---Do you want a lift home?
---It’s very kind of you, but I have a much late in the office. I overslept this morning because my morning clock _______.
A. doesn’t go off
B. won’t gone
C. wasn’t going off
D. didn’t go on
第2题：
A、When you drink, you can't drive.
B、You walk home.
C、You can keep drinking.
第3题：
—Must I be in hospital for a week， Doctor?
—No， you_________. You can go back home tomorrow.
A. mustn’t B. needn’t C. must
第4题：
I'm very sorry I can't go to your birthday party. _______.
A. It's very nice
B. Can I help you
C. It doesn't matter
D. Certainly
第5题：
Can you go skating with us this afternoon?
Sorry,I can't. I()take care of my little sister at home.
A. could
B. may
C. have to
第6题：
If you want to go, I would give you my advice that you take an umbrella.
第7题：
He()to Shanghai for I saw here a minute ago.
A. can't go
B. can't have gone
C. didn't go
第8题：
Computer is one of the greatest ___________________ (发明). I can’t imagine life without it.
第9题：
Is there anything I can do?()
A. Don't mention it.
B. Thanks, but I can manage.
C. Go ahead, please.
第10题：
I am working now. I can't go with you.()