— Must I return the book to you now?
— __________, you__________. You can do it tomorrow.
句意：——我现在必须把书还给你吗？ ——不，不需要。你可以明天再做这件事。
考查must开头的一般疑问句。根据答句You can do it tomorrow可知，空格处是说不需要，做否定回答，C选项可排除。根据英语语法，以must开头的一般疑问句，否定回答用needn’t或don’t have to，故选A。
— Must I return the book to you now?
— __________, you__________. You can do it tomorrow.
—May I fish here?
—Sorry, you ________. Look at the sign “No fishing”!
—It’s very cold outside.
—Oh, yes. You’d better________ your coat.
It’s getting dark. You’d better ________ out by yourself. It’s dangerous.
Time is limited! You'd better________your time any more.
We _________ try our best to fight against pollution.
—Sorry, Miss Chen. I missed the early bus, so I was late again.
—It doesn’t matter this time. You ________ leave home 10 minutes earlier than before in future.
We ________ eat or drink in the museum. It is against the rule.
I love the weekends,because I ________ get up early on Saturdays and Sundays.
To my joy, we_________go to the bank. Mary has lent us some money.
