几道英语单选题1.-Has your father returned from Africa yet?-Yes,but

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几道英语单选题
1.-Has your father returned from Africa yet?
-Yes,but he ___here for only three days before his company sent him to Australia.
A.was B.has been C.will be D.would be
为什麽不选B阿?后面sent不是过去时吗?还有句中有for only three days不应用完成时麼?
2.The cat is the only one of her pets she will have___ on her bed.
A it sleep B.it sleeping C.slept D.sleeping
为什麽是D而不是B?
3.As the light turned green,I stood for a moment,not___,and asked myself what I was going to do.
A.moved B.moving C.to move D.being moved
4.Every___months,the supply ship comes,bringing us things____we need.
A.few,what B few,that C.a few,that D.a few;/
为什麽后面那空不是what we need?

我来帮你做一做
1.因为你爸爸已经不在了(抱歉,不是诅咒,我说的是题目1里的your father)
现在完成时表示一个已经完成的动作对现在的影响,你爸爸不在了(再次抱歉),所以影响已经结束了,因此这道题我想应该选A吧?
for状语未必都跟完成时态,这就是你的语法学得太机械了,如果你愿意Hi我,关于时态我可以给你说一说
2.选D是因为一个固定结构:Have sth doing 表示"允许...做某事"
3.这里需要你填一个插入成份,也就是状语成份,因此应该选一个非谓语,先排除A和D,因为I和move是主谓关系,AD要求两者之间是谓宾关系
C是不定式结构,这种结构很少在非谓语结构中作目的状语之外的状语结构,即使作其它的状语,一般也是某种固定结构,正常情况不会出现在插入结构中的
所以我觉得这题应该选B
4.针对你的问题,有一公式你应该记住:what=the thing that
显然,如果前面没有那个"things",what就是对的

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