用after、 before 、if 、when、 while 、as soon as 填空用after、 before 、if 、when、 while 、as soon as 填空1.Never get on or off a bus ( )it is still running.2.All thing are difficult( )they are easy.3.I'll talk about it with you ( )

用after、 before 、if 、when、 while 、as soon as 填空用after、 before 、if 、when、 while 、as soon as 填空1.Never get on or off a bus ( )it is still running.2.All thing are difficult( )they are easy.3.I'll talk about it with you ( )
用after、 before 、if 、when、 while 、as soon as 填空
用after、 before 、if 、when、 while 、as soon as 填空
1.Never get on or off a bus ( )it is still running.
2.All thing are difficult( )they are easy.
3.I'll talk about it with you ( )we meet next week.
4.( ) I left school at the age of seventeen,I want to college.

用after、 before 、if 、when、 while 、as soon as 填空用after、 before 、if 、when、 while 、as soon as 填空1.Never get on or off a bus ( )it is still running.2.All thing are difficult( )they are easy.3.I'll talk about it with you ( )
1.while 这里表示在一个⋯⋯的过程中
在巴士开动的过程中不要上车／下车.
2.if 好像是句蛮有哲理的话：所有简单的事情（从某种角度上来说）都是难的.
3.before 我们在下周碰面是未来的事情
4.when 这里是一个时间点
有问题再问.
望楼主采纳.

1.before
2.while
3.if
4.after

when
before
if
after

when
while
as soon as
after

when\while
as soon as
if
第四题，when。want应是wanted