— 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
I was advised to arrange for insurance ____ I needed medical treatment.
#73152
A
nevertheless
B
although
C
in case
D
so that
_______ difficult and challenging the task may be, we must finish it on time, because there is a possibility _______our work will go down in history.
#67717
A
Whatever; that
B
However; as
C
Whatever; which
D
However; that
The river, _______the bank are covered with trees, is very long.
#72211
A
whose
B
which
C
of which
D
which of