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
The wet weather will continue tomorrow when a cold front ________ to arrive.
A．is expected B．is expecting
C．expects D．will be expected
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
—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
I like these English songs and they ________ many times on the radio.
A．taught B．have taught
C．are taught D．have been taught
—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
