possible means _____ to prevent the airpollution, but the sky is still not clear.

Please ______ your sister to bring the ticket for the concert.[ ]

One of the men held the view ________ the book said was right.[ ]

The museum he paid a visit ________ at the end of thestreet

(2013·高考浙江卷)During the last three decades，the number of people participating in physical fitness programs ________ sharply