问题描述：
it is the fifth time that the students in trinity collage (A) our school
it is the fifth time that the students in trinity collage (A) our school.
A.have visited B.visited C.were visiting D.had visited
2.解释此题为什么用care about,不用care for?
he thinks only of himself,he doesn't (care about) other people
it is the fifth time that the students in trinity collage (A) our school.
A.have visited B.visited C.were visiting D.had visited
2.解释此题为什么用care about,不用care for?
he thinks only of himself,he doesn't (care about) other people
问题解答：
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