(2013·新课标Ⅱ，10)It was only after he had read the papers________Mr.Gross realized the task before him was extremely difficult to complete.

A．when B．that C．which D．what

(2013·重庆，27)It was with the help of the local guide ________ the mountain climber was rescued.

A．who B．that C．when D．how

(2013·湖南，30)Every day________a proverb aloud several times until you have it memorized.

A．read B．reading C．to read D．reads

—Did you watch the basketball match yesterday?

—Yes，I did.You know，my brother ________ in the match.

A．is playing B．was playing

C．has played D．had played

I like these English songs and they ________ many times on the radio.

A．taught B．have taught

C．are taught D．have been taught

—I'm sure Andrew will win the first prize in the final.

—I think so.He ________ for it for months.

A．is preparing B．was preparing

C．had been preparing D．has been preparing

We first met on a train in 2010，but we both felt immediately that we ________ each other for years.

A．knew B．have known

C．had known D．know

The wet weather will continue tomorrow when a cold front ________ to arrive.

A．is expected B．is expecting

C．expects D．will be expected

If their marketing plans succeed，they ________ their sales by 20 percent.

A．will increase B．have been increasing

C．have increased D．would be increasing

—Sorry，sir，your car isn't ready yet.

It ________ by our workers.

—Oh，my God，when can I come to fetch it?

A．is repaired B．has been repaired

C．is being repaired D．will be repaired