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—How many teachers are there in your school?

—______ them ______ over one hundred.

A. The number of ; is

B. The number of ; are

C. A number of ; are

Something _____ in our hometown since 2014. Now it ______ very modern.

A. is changed; is looked

B. has changed; looks

C. changed; looks

—What about going swimming this afternoon?

—You ______ be joking! Don't you know I'm afraid of water?

A. may B. can C. must

—Jim, how do your parents like country music?

—______ my dad ______ my mom likes it. They both like country music.

A. Either...or

B. Not only...but also

C. Neither...nor

—How far is it from Beijing to Haikou?

—It's a______ flight from Beijing to Haikou.

A. 3-hour-long B. 3 hours long C. 3 hours' long

—Many people talk about "Didi". I really wonder ______.

—You call to order a taxi through it on your mobile phone easily.

A. how can I use them

B. who uses them most

C. what they are used for

—Whose room is this? Is it the______? ­

—Yes, it is ______.

A. twins'; Tom and Tim's

B. twin's; Tom's and Tim's

C. twins'; Tom and Tim

All the students in the classroom do their homework ______.

A. enough careful B. careful enough C. carefully enough

You're supposed ______ your room up before you go out.

A. to clean B. clean C. cleaning

—What do you think of the program I am a singer Ⅲ ?

—______ exciting program it is! I like it very much.

A. What a B. How C. What an