A.Knocking
B.Knock
C.Knocked
D.To knock
A.Where
B.How
C.What
D.That
开始考试点击查看答案A.that
B.so that
C.so
D.when
开始考试点击查看答案A.when
B.that
C.which
D.what
开始考试点击查看答案A.As he is young
B.Young as is he
C.As young he is
D.Young as he is
开始考试点击查看答案A.was there
B.wasn’t there
C.didn’t he
D.did he
开始考试点击查看答案A.Which
B.What
C.How
D.Whether
开始考试点击查看答案A.could you
B.couldn’t
C.couldn’t we
D.could we
开始考试点击查看答案A.How
B.What
C.How many
D.Very
开始考试点击查看答案A.hadn’t
B.didn’t
C.don’t
D.do
开始考试点击查看答案A.who
B.where
C.which
D.that
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