绝对准确!
1 I found the book (which/that) I bought yesterday interseting.
2 A friend of mine whose name is Jack visited me yesterday.
3 Do you know the mountain the top of which is covered with snow.
或：Do you know the mountain of which the top is covered with snow.
或：Do you know the mountain whose top is covered with snow.
4 This is the student (whom/who) our teacher is proud of in our school.
或：This is the student of whom our teacher is proud in our school.
1 This is the same man whom I saw in the train.
改正：This is the same man as/that I saw in the train.
whom改成as或that
2 I lost the watch which I had bought it last month.
改正：I lost the watch which I had bought last month.
去掉it
3 He is the richest merchant who lives in this city.
= He is the richest merchant that lives in this city.
who改成that
4 He is the man whom I thought was your brother.
= He is the man who I thought was your brother.
whom改成who
5 Who which knows me will believe it is true?
= Who that knows me will believe it is true?
which改成that