题目内容

______ plastics, the machine is light in weight.

A. Made of
B. Having made with
C. To make of
D. To be made of

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______ after a long walk, Harry called and said he couldn’t come.

A. Having worn out
B. Be worn out
C. To wear out
D. Worn out

You are just the same ______ you were the day when I first met you.

A. that
B. as
C. like
D. so

The atmosphere is as much a part of the earth as ______ its soils and the water of its lakes, rivers and oceans.

A. are
B. is
C. do
D. has

He must have had an accident, or he ______ here then.

A. should be
B. would be
C. could have been
D. would have been

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