Selecting a mobile phone for personal use is not an easy task because technology ________ so rapidly.
A．is changing B．has changed
C．will have changed D．will change
Visitors ________ not to touch the exhibits.
A．will request B．are requested
C．are requesting D．request
—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
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
