1._________both sides accept the agreement will a lasting peace appear in this region.

A.Unless            B.As long as        C.If only           D.Only if

2.In the botanical garden we can find a_____of plants that range from tall trees to small flowers.

A.great deal        B.species           C.variety           D.large amount

3.With the rumor that he was once sentenced into prison for five years__________ , he found he couldn’t live in this city any longer.

A.getting across    B.getting around    C.getting through   D.getting over

4.The man is ___________a serious nervous breakdown because he is unable to deal with pressure from various respects.

A.in favor of       B.in spite of       C.on behalf of      D.on the edge of