类型一:引导词的运用
(1)I don’t know ___________or not
. A.whether he is at home
B.if he is at home
C.that he is at home
D.whether is he at home
(2)This depends on _________ the weather is fine
. A.which
B.whether
C.if
D.that
(3)The teacher asked the new student ________ class he was in
. A.which
B.where
C.if
D.that
(4)I don’t know ________ Mr
.Green will come to see us
.He’ll help us with our English
. A.why
B.when
C.how
D.where
(5)---Be ca ...


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