The teacher doesn’t permit ____. [ ]

The astronauts have to lie ________ the floor of thespaceship to fight against the great pressure during the flight.

Nowadays in China many teenagers have no dream _________to be an astronaut and fly to the moon

－When did you today－At 8:00.

填入下面一段文字横线处的语句，最恰当的一句是（ ）我们都会衰老。我镇定的注视着我的年纪，犹如眺望远方一副渐渐逼近的白帆，为什么要掩饰这个现实呢 。勇气不是储存在脸庞里，而是掌握在自己手中。