题目内容：

1.（ ）a teacher,John thinks that his main duty is to heip the students to become better learners.
A.As B.By C.About D.For
我想问问,这四个选项的区别.
2.—Maya is a loving grandmother.
--Yeah,she__all her feer time on her grandchildren.
A.pays B.takes C.costs D.spends
为什麽不选A不是take用于时间上吗?
3.I could not see __,because there was not ___
A.enough clearly,light enough B.clear enough ,enough light C.enough clearly,enough light D.claerly enough ,light enough
为什麽不选D,此时light做表语,是adj.enough应该后置啊?
4.The teacher ___be in office ,for I saw her here just a minute ago.
A.can not B.needn't C.mustn't D.won't
这道题需要把四个选项都分析一下,

优质解答

第一题就是4选项每个词义的差别
第二题主语是人的时候用spend,当主语是it才用take,表示某事花了好多时间
第三题中light是名词,表示灯{灯的数量}.clear是形容词
第四题就是猜测了,每个选项的语气不同.can not意为不可能,不会；need not意为不必要；must not是不准,但通常对must否定是都用needn’t；won't表将来了,不会···.通过后面一句的saw和句意该选a