1.___ computers not been used,it would have taken them more time to solve the problem.
问题描述：
1.___ computers not been used,it would have taken them more time to solve the problem.
a.If have b.Have c.If had d.Had
2.It hasn't been decided whether the equipment ____ at once.
a.should put into use b.must be put into use
c.will e put into use d.be put into use
选d.d
需要2题的解析,其他选项错在哪?
答
第一题选d,是因为要与would对应,have与will对应.
第二题翻译过来是说“还没有决定这件装备是否应该立即被投入使用”其中应译出“应该（should）”排除b,equipment 是从句中的主语,物做主语用被动,排除ac.d选项完整的应该是should be put into use