Nowadays young people enjoy ________ what they do on social media.

A. post B. posted C. to post D. posting

In recent years different ways ________ to recycle the plastic wastes.

A. tried B. were tried C. have tried D. have been tried

With smart technology, we ________ use voice to control lights and TV in this room.

A. can B. must C. should D. need

________ there is danger on the internet, online insurance is still popular among the young.

A. Unless B. Though C. Since D. Until

The cakes on the brochure look ________ and everyone wants to have a try.

A. lovely B. beautifully C. nicely D. wonderfully

--I called you at four p.m. yesterday, but you were not at home.

--Oh, I ________ a yoga class in the gym.

A. had B. was having C. has had D. am having

You’d better ________ the names of the applicants before we vote.

A. list B. listed C. listing D. to list

________ upset the scientist was about the result of the experiment!

A. What B. What a C. What an D. How

The new test enables doctors ________ the disease early enough to treat the patient.

A. find B. found C. to find D. finding

--Excuse me, may I ask you a few questions?

--________.

A. Sure, go ahead B. You are welcome

C. Thank you very much D. Not at all