Having checked the doors were closed , and _________ all the lights were off, the boy opened the door to his bedroom.
#74493
A
why
B
that
C
when
D
where
推荐题目
 He made another wonderful discovery, ____ of great importance to science.
#69957
A
which I think is
B
which I think it is
C
which I think it
D
I think which is
It _____ ten years since they _____ to France.
#41050
A
was; moved
B
was; have moved
C
is; have moved
D
is; moved