Sam must be （）in his bedroom now.He is going to leave for Paris tomorrow.

Space travel is dangerous and the astronauts in space have to （）many discomforts （不适）in their rockets.

A.disturb
B.tremble
C.endure
D.operate

点击查看答案&解析

Happy families are all （）；every unhappy family is unhappy in its own way.

A.like
B.alike
C.likely
D.likeliest

点击查看答案&解析