He used up late, but now he is used to up early.
— When did Mr Green teach in China?— _______.
There will be _______ space for wildlife if we do _______ to protect the environment.
— The floor is clean and dry now. Who _______?— Sorry, I don’t know.
Please don’t drop litter _______, you should throw it into the dustbin _______.
Mr Li’s students can call him _______ 57684051 or e-mail him _______ lihua@sina.com.