— Have you found your English book? — I am not sure ____ I could have left it.
#74058
A
whether
B
what
C
when
D
where
推荐题目
his father has been away for more than one year, John can still keep doing what he needs to.
#67708
A
While
B
When
C
As
D
Whether
Those successful deaf dancers think that dancing is an activity_____sight matters more than hearing.
#71801
A
when
B
whose
C
which
D
where
—What are you going to do this afternoon? — I will probably play computer games ________ my parents are out.
#74598
A
as far as
B
as long as
C
even if
D
as if
______ come into leaf or bloom is obviously a sign of spring.
#69125
A
Trees
B
The trees
C
That trees
D
What trees