As we know, none of us likes pollution.
What method can you think of _________ with these broken computers?
Scientists are trying their best to_______ ways to treat the terrible disease caused by Ebola(埃博拉).
Now it’s time to have a rest. You’d better _______.
Could you tell me a meeting in Guangzhou next week?
Every day, too much water _______ in our school. We should save it.