Withthehelpofhightechnology,mo

With the help of high technology, more and more substances _________ in the past years.

A．discovered	B．have discovered
C．had been discovered	D．have been discovered

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It is the second time that I ____ in Shanghai. What great changes! It’s years since I ____ here last time.

A．went; had left	B．had been; left
C．have; had left	D．have been; left

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The new castle being built for fun will be _____ the present one。

A．three times more than size of	B．as three times big as
C．bigger three times than	D．three times as big as

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Hurry up! The train _____ .You know it _____ at 10:30a.m.

A．leaves; leaves	B．is leaving; leaves
C．leaves; is leaving	D．is leaving; leaving

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—Why do you suggest the West Lake?
—I believe __beauty of nature there will make __excellent impression upon you.

A．the; the

B．the; /

C．a; an

D．the; an

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----- I had a really good weekend in the countryside,
----- ___________________________.

A．Oh, that’s very nice of you	B．Congratulations
C．It’s a pleasure.	D．Oh, I am glad to hear that.

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