【推荐1】—Could you tell me ________?
—Certainly.

A．how long you will leave	B．if the air is badly polluted
C．whether you had got ready for the exam	D．what’s the story about

【推荐2】Do you know _________there will be a soccer match on CCTV-5 tonight?

A．that

B．if

C．where

D．when

【推荐3】—I’m not sure ________ you eat vegetables every day.     
—I know ________ they are good for our health, so I eat them every day.

A．if; that

B．that; if

C．that; that

D．if; if

【推荐1】I’m sorry ________ what I did.

A．of

B．that

C．for

D．when

【推荐2】— The self-driving (自驾) cars are getting more and more popular in the world.
— Really? Maybe I’ll buy ________ some day.

A．it

B．that

C．one

D．ones

【推荐3】—I heard Xi Jinping had paid his tenth visit to Heilongjiang province this September.
—I think ________ necessary for China to help the development of Heilongjiang province.

A．that

B．it

C．one

【推荐1】My family wants to take a trip to Canada next month.

A．move away

B．travel

C．be away for work

【推荐2】I don’t think it is a good idea _______ around during this time of year.

A．travel

B．travels

C．traveling

D．to travel

【推荐3】Katie has bought the ticket for the concert online, so she doesn’t need to ________ to the theater this evening.

A．add

B．rush

C．reply

D．travel

【推荐1】—I wonder ________ those books are useful to you.
—Of course they are. They helped me so much when I wrote my book report.

A．how

B．why

C．whether

【推荐2】I don’t doubt ________ our company will play a more and more important role in the world affairs.

A．whether

B．that

C．if

D．how

【推荐3】— Cindy, I wonder ________ your sisters will come to the school party?
— Sorry, none of them is free tomorrow.

A．what

B．whether

C．when

D．where