They( )for shanghai on Friday.shall we go to see them off at the train station A left B were leavingC have left D are leavingc为什么不可以Old people must ( )A be spoken to politely B speak to polite C be spoken politely D speak polite那个to为什么要有啊?c为什么不可以It was （ ）weather that they decide to go out for a picnic.A such fine B such a fine 为什么没有a-I don not have a parner to play table tennis with.-why ( )a sport club to practise a lot?A don't join B not joining C

They( )for shanghai on Friday.shall we go to see them off at the train station
A left B were leaving
C have left D are leaving
c为什么不可以
Old people must ( )
A be spoken to politely B speak to polite C be spoken politely D speak polite
那个to为什么要有啊?c为什么不可以
It was （ ）weather that they decide to go out for a picnic.
A such fine B such a fine
为什么没有a
-I don not have a parner to play table tennis with.
-why ( )a sport club to practise a lot?
A don't join B not joining C not to join D don't you join
not 和why don't you 的区别
（ ）are you gong to write this story
-about five pages
A how often B how soon C how long D how fast
how long 表时间为什么可以说明故事的长短,可以表具体吗?