Thefluisbelievedbyvirusesthatl

The flu is believed ________ by viruses that like to reproduce in the cell inside the human nose and throat.

A．causing	B．being caused
C．to be caused	D．to have caused

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You look that light-hearted. Nothing seems ________ to you.

A．to happen

B．to be happened

C．to have happened

D．to have been happened

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We ________ you ever since you sent us the fax informing us of your date of arrival.

A．expected

B．were expecting

C．are expecting

D．have been expecting

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--Mr. Smith, you are arrested for stealing. Please sign here.
--Arrested? Stealing? ________

A．Are you all right?	B．You can't be serious!
C．I'm a foreigner.	D．It doesn't matter.

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I welcome the news ________ attacks on women on the railways are 19 percent down.

A．which

B．that

C．when

D．whether

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--I didn't tell my parents that I would leave home.
--You ________ when you left home since you are living with them.

A．ought to have

B．might have

C．should

D．must

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