—Would you please____________ that book on the floor?

—OK!

A.pick up B.make up C.take up D.turn up

____________ the advances in technology, students can learn online at home during the epidemic period.

A.In addition to B.Thanks to C.In spite of D.According to

Teenagers should try to be____________ of their parents, doing something on their own.

A.independent B.impressive C.aware D.proud

It is a great____________ for our country to hold the 2022 Winter Olympic.

A.signal B.function C.honor D.agreement

He was busy yesterday. ____________, he would have come to my party.

A.Moreover B.Therefore C.However D.Otherwise

If you have any questions, please do not____________ to ask your teachers.

A.suffer B.hesitate C.attack D.ensure

____________ China has made advances in 5G technology, there is still a long way to go for its popularity.

A.If B.Because C.Since D.While

I would appreciate____________ if you could help me out when I am in trouble.

A.that B.one C.it D.this

At the beginning of the year 2020, students never thought they____________ such a long winter vacation.

A.would have B.are having

C.have D.have had

____________ by his behavior, I said all this to my best friend.

A.Disappointing B.To disappoint

C.Disappointed D.Being disappointed