It is said that _______________of confirmed cases(确诊病例) in Beijing _______________over 300 during the past days.

A.the number; has reached B.a number; has reached

C.the number; have reached D.a number; have reached

—Must I return the book to you now?

—_______________, you _______________. You can do it tomorrow.

A.No; needn’t B.No; mustn’t C.Yes; must D.Yes; may

—It is so hot today. Why not swim in the river?

—No, we can't swim in the river. Our teachers and parents always warn us _______________ in the river.

A.to not swim B.swimming C.not to swim D.not swimming

—Jack, I'm busy doing the washing. Can you give me a hand?

—Wait a moment. I ____________________ the bed.

A.am making B.will make C.was making D.have made

—To be honest, the job is done _______________ to make your boss pleased.

—I’m sorry. I will try my best next time.

A.too careless B.careless enough C.too carelessly D.carelessly enough

—_______________ I have tried many times, I can't work it out.

—Don't give up and let's have another try together.

A.Since B.Because C.Unless D.Though

Nowadays people like to show themselves on trill (抖音) , _______________ young people.

A.politely B.specially C.widely D.especially

—I can’t believe these coats are_______________ wool_______________ hand. The patterns are really fine.

—I don’t believe it , either. But no machine is used during the whole process.

A.made of, with B.made from, by C.made of, by D.made from, with

—How can we stop the virus from ________________fast?

—By wearing masks and going out as little as possible.

A.passing B.growing C.spreading D.carrying

—I feel a little ________________about the coming PE exam.

—Take it easy. The more you prepare, the better grades you will get.

A.nervous B.angry C.bored D.disappointed