Itbecomemuchtoprovideenoughene

It become much _______ to provide enough energy for a big city with large population.

A．difficult	B．more difficult
C．most difficult	D．easy

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I _______ 2 hours finishing my homework last weekend.

A．took

B．cost

C．paid

D．Spent

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—When and where shall we meet tomorrow?
—Let’s _______ it 3:00 p. m. at my home.

A．do

B．make

C．meet

D．Plan

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________ clever girl she is! She got a good mark in the math exam again.

A．What

B．What a

C．How

D．How a

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May I ask _______? Maybe I can help you find it.

A．what are you looking for	B．what are you looking
C．what you are looking for	D．what you are looking

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— I called you yesterday evening, but no one answered.
— I ______in my bedroom at that time.

A．read

B．was reading

C．am reading

D．reads

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