--- How many of you have solved the math problem?

--- ________, the math problem is far too difficult for us to work out. .

A． All                        B. None                                C. Nobody                            D. Everybody

 ---When will the pop star arrive?  ---- Sometime ________2:30 _____ 3:30.

A. From; to             B. Between; and     C. At; to                   D. Between; to

The theme park is about ____ ride from the museum. You should start out right now.

A. two hours    B. two hour’s      C. two-hour                    D. two hours’

--- Look! That teacher is explaining something to her students again and again.

   --- _________ teacher she is.

A. How patient          B. What a patient   C. How stubborn      D. What stubborn

In the UK, a woman usually doesn’t like to be asked _________.

A. if she has been married or not            B. what is her age

C. how much she weighs                  D. where she comes from

--- Middle school students hardly know anything about shopping online, ____ they?

   --- ________. It’s very popular with teenagers.

A. do; No     B. do; Yes             C. don’t; No          D. don’t; Yes

After you see the pictures, you will realize ______ danger the wildlife faces.

A. how many              B. how often                        C. how much              D. how long

Scientists are working hard to make _______ possible for people to live on Mars in the future.

A. it               B. that                              C. this                                D. one

Uncle Mike _______ to bed ______ he finished his work last night.

A. not went; before                                   B. didn’t go; after  

C. doesn’t go; until                                       D. didn’t go; until

--- Are you going to take part in the writing competition?

   ---________. It’s too good a chance to miss.

A. That’s for sure.     B. Never mind       C. Cheer up     D. My pleasure