题目内容

useful invention(发明) the computer is!

A.
What an
B.
What a
C.
How
D.
How a

B
此题考查是感叹句。中心词是名词所以用what来引导useful的第一个音素是辅音音素故其前加a.

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useful invention(发明) the computer is!

A．What a B．What an C．How a D．How an

— useful invention it is.

—Yes, It helps us a lot.

A．What an B．What a C．How D．How a

—What’s ______ most useful invention in the 20th century?

—______ computer, I think.

A. the, A B. a, A C. the, The D. /, The

—What’s _____most useful invention in the 20th century?

—_____ computer, I think.

A. the, A B. a, A C. the, The D. /, The

useful invention(发明) the computer is!

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