Hehavesenttheemailatanearliert

He ______ have sent the e-mail at an earlier time， but there was something wrong with the network.

A．must	B．should
C．could	D．might

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Liu Yang became the first woman astronaut in China _____into space. ( )

A．ravel	B．travelled
C．to travel	D． being travelled

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-What's the matter?
-The cook _____five minutes ago, and there are fifty dinners still to cook.( )

A．left	B．leaves
C．has left	D．was leaving

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Most of us_________more than one thousand English words before we came to this school. ( )

A．would learn	B．will learn
C．have learned	D．had learned

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Nankai University,_______ in 1919, has a history of more than 94 years. ( )

A．found	B．founding
C．founded	D．to be founded

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Our English teacher spoke very clearly ________we could hear every word. ( )

A．so that

B．now that

C．as soon as

D．in case

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