问题描述：
When Mr Green got to the entrance of the hall,he saw some kids ____ there.
smoke,为什么不用smoking,请解析.
The problem is _____ difficlt for us____.
a.so;work out b.very too;to be worked out c.rather too;to work out d.quite too;to work it out
请问为什么?
在此先谢了.
Don't write ___ your pencil .Please write ____ pen.
a.with;with b.with;in
为什么？
smoke,为什么不用smoking,请解析.
The problem is _____ difficlt for us____.
a.so;work out b.very too;to be worked out c.rather too;to work out d.quite too;to work it out
请问为什么?
在此先谢了.
Don't write ___ your pencil .Please write ____ pen.
a.with;with b.with;in
为什么？
问题解答：
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