About 35% of the rubbish in HongKong can be recycled every year the rest can’t.A. then B. while C. since
The book _______ well. I’m afraid it _________ out.
The villagers used to______ drinking water from the river nearby, but now they spend two hours _______ to get it in the mountain because of the dry weather in Yunnan.
––Have you returned the book to the library _______? ––Yes, I have _________ returned it.
What were you asked _______ at yesterday’s meeting?
–– How do you like the film AVATAR? –– Great! I _______ such a wonderful film before.