Bill’s mother encourages him _______ the sports club. She thinks doing more sports is good for his health.

A. to join B. join

C. joined D. joining

Why didn’t you stop those children _______ in the lake? It was too dangerous.

A. swim B. to swim

C. from swimming D. swum

—Don't worry. I will look after your baby ________．

—Thanks a lot.

A. careful enough B. enough careful

C. carefully enough D. enough carefully

—Could you please sweep the floor? I'm going to cook dinner.

—________. I'll do it at once, Mum.

A. I'm afraid not B. You're kidding

C. It's a shame D. With pleasure

—Did you go to Linda’s birthday party, Jill?

—No. I ______.

A. didn’t invite B. wasn’t invited

C. am not invited D. haven’t invited

--- "Frog", Mo Yan's latest novel, please!

--- Sorry, it   just now. But it will come out again soon.

A. sold out B. is sold out C. has sold out D. was sold out

--- Can you sing the English song?

--- Yes, a little. It   on the radio yesterday.

A. taught B. is taught

C. was taught D. taughting

—How long did Robert stay in San Francisco?

—For _______ three weeks.

A. hardly B. usually C. nearly D. mostly

Last night we didn’t have supper _______ my father came back home.

A. if B. until C. though D. because

At least more than 300 million people are using QQ ________ by Ma Huateng to chat online.

A. created B. was created

C. is created D. creating