Whenhecamein,Ihappenedmyexperi

When he came in, I happened __________ my experiment in the lab.

A．to do	B．to be doing
C．to have done	D．to be done

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--- So what is the procedure?
--- All the applicants before a final decision is made by the authority.

A．interview	B．are interviewing
C．are interviewed	D．are being interviewed

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Shakespeare’s play Hamlet into at least ten different films over the past years.

A．had been made	B．was made
C．has been made	D．would be made

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A．does

B．had been done

C．will do

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A．has grown

B．has gone

C．turns

D．became

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This kind of sea fish doesn’t keep easily. You had better put it in the refrigerator so that it will fresh.

A．stay

B．stand

C．remain

D．persist

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