Themathproblemissohard．Ireally

The math problem is so hard． I really don’t know________.

A．how to do it	B．how to do
C．what to do it	D．where to do it

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—1 doubt if he ___________ in the discussion tonight.
—I believe if he ____________his homework, he will join us.

A．will join；will finish	B．will join；finishes
C．joins; finishes	D．joins; will finish

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This year our school is __________ than it was last year.

A．much more beautiful	B．much beautiful
C．the most beautiful	D．beautiful

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Kangkang won the first place in the _______ in the school sports meet last week.

A．boy’s 100-meter race

B．boys’ 100-meter race

C．boy’s 100-meters race

D．boys’ 100-meters race

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-Someone’s knocking at the door. Is it your mother?
-No, dad. It _____be mom. I saw mom ____in the bedroom just now.

A．must, sleep	B．may, sleeping
C．needn’t, sleep	D．can’t , sleeping

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They waited and waited, and_____ he came back.

A．at once	B．at first
C．at the end	D．at last

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