A.Which
B.This
C.That
D.It
A.that
B.it
C.one
D.this
开始考试点击查看答案A.What is required
B.What requires
C.It requires
D.It is required
开始考试点击查看答案A.it
B.that
C.these
D..them
开始考试点击查看答案A.it
B.them
C.her
D.that
开始考试点击查看答案A.As
B.That
C.This
D.It
开始考试点击查看答案A.possible
B.it possible
C.that possible
D.it is possible
开始考试点击查看答案A.that
B.it
C.this
D.you
开始考试点击查看答案A.that
B.it
C.one
D.this
开始考试点击查看答案A.that
B.him
C.it
D.himself
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