If there were life on Mars, such life forms（）unable to survive on earth

单项选择题He is over fifty, but he looks as though he（）only in his thirties.

A.were
B.is
C.will be
D.has been

单项选择题（）I got a first, I'd stay in university and I'd do a postgraduate research degree.

A.As
B.Since
C.When
D.If

单项选择题If you don't promise to help build more houses, ordinary people（）

A.will not be nefit
B.would not be nefit
C.should not be nefit
D.could not be nefit

单项选择题If I had more money, I（）travel around the world.

A.will
B.want
C.would
D.like

单项选择题If I get the new job. I（）buy a better car.

A.–（不填）
B.will
C.would
D.might

单项选择题He spends a quarter of the day（）

A.to sleep
B.sleeping
C.sleeps
D.to sleeping

单项选择题My car was being（）when it was stolen

A.to repair
B.repair
C.repairing
D.repaired

单项选择题Don't worry, your watch（）and you can have it in no time.

A.is repaired
B.has been repaired
C.was repaired
D.is being repaired

单项选择题Are trees（）along the road right now?

A.plant
B.planting
C.being planted
D.planted

单项选择题A new hotel（）in the center of town at the moment

A.has been built
B.is built
C.was built
D.is being built