没有整机放行授权的人员签署整机放行，并造成航空器起飞

Father made a promise _____ I passed the examination he would buy me a bicycle.

The reason ______ he was late for school was _______ he had to send his mother to a hospital.

_______ leaves the room last ought to turn off the lights.

You can have the magazine _______ I finish reading it.

The teacher spoke loudly _______ the students could hear him clearly.

We won＇t give up ______ we should fail ten times.

It worried her a bit________her hair was turning gray.

_______we can’t get seems better than________we have.

What a pity________is________you didn’t arrive by daylight

It＇s well known ______ the earth moves round the sun.