【小题1】将来会有更少的污染。
There will be ______ ______ in the future.
【小题2】这条狗处于极大的危险中，它可能会丧命。
The dog is ______ ______ ______ and it may lose its life.
【小题3】我们都应该参与到保持教室干净整洁中来。
All of us should ______ ______ ______ in keeping the classroom clean and tidy.
【小题4】你认为人们能活到200岁吗？
Do you think people ______ ______ ______ ______ 200 years old?
【小题5】在昨天的会议上他不同意我的看法。
He didn’t ______ ______ ______ at the meeting yesterday.