--- You haven’t been to Beijing, have you?--- How I wish to go there!
On his way home, he found a wallet ____ on the ground, which he picked up and ____ in his schoolbag.
Could it be in the restaurant in ____ you had dinner with me yesterday ____you left behind your keys and wallet?
There is no need _______ and it’s no use __________ there too early.
The air is deadly polluted because some factories don’t __the rules to protect the environment.
------Is your father a teacher of English in the No.l Middle School?-------No! But he _________ English there for ten years.