进行安全带检查时，缓慢拉动安全带，此时安全带的状况为（）
A.立刻锁止
B.不能锁止
C.有的能锁止、有的不能锁止
参考答案：B
They had no sooner arrived at the bus station than the bus .
A．had left
B．will leave
C．left
D．is leaving
根据这个时间表，写一写你一天的作息时间。
I am a student. This is my day. _________________________________________________________
______________________________________________________________________________________
