As time went by, the plan stuck ________ fairly practical.
A．to prove B．to proved C．to proving D．to proves
Our manager ________ for Shanghai in a few days and he has asked me to find out when the earliest plane ________ next Wednesday.
A．is leaving; takes off B．will leave; is taking off
C．leaves; will take off D．is to leave; is going to take off
Stephen Hawking believes that the earth is unlikely to be the only planet _______ life has developed gradually.
A．that B．where C．which D．whose
The sleeping baby would be scared _______ a sudden loud noise.
A．was there B．there was
C．should there be D．there should be
--David, are you 1istening to me?
---Sorry, Dad. I _______ to make sense of what the reporter said.
A．was trying B．have tried C．am trying D．tried
Many approaches have been _______ to control the spread of H7N9 Bird Flu.
A．adapted B．employed C．negotiated D．accessed
