【题目1】Failure is part of life; it’s wrong for parents to protect their children from the knowledge ______ they have failed.
A. where B. when C. that D. how
【题目2】All the apples _____ fell down were eaten by the pigs.
A. that B. those
C. which D. what
【题目3】I'll tell you _____ he told me last night.
A. all which B. all what
C. that all D. all
【题目4】A child _____ parents are dead is called an orphan.
A. who B. who's
C. whose D. which
【题目5】Is this the museum _____ you visited the other day?
A. that B. where
C. in which D. the one