【题目】Most of the students in the Occupy Central movement in Hong Kong ______ have participated for more rights, but what they did caused serious effects on people’s living.

【题目】Is there a certain cure ___ lung cancer yet?

【题目】From facts，scientists have ________that more energy is being absorbed from the sun，throwing the earth's energy “out of balance”．

【题目】_________ that causes heavy haze sweeping over china remains unknown to many scientists.

【题目】－I've studied gardening as a hobby. Could I make some suggestions?

【题目】He is a skillful worker. I am sure he has enough ________to fix all the________.

【题目】Don't be afraid to ____ help if you have any further problems.

【题目】You're standing too near the camera. Can you move________？

【题目】－I have seen so little of Mike________. Is he away on business?

【题目】It's everyone's desire that every effort ___ to realize the China Dream.