He was about to leave the office for home _______someone knocked the door and asked for some help.
#30110
A
until
B
while
C
as
D
when
推荐题目
---Sunday is a public holiday, _____children should get close to nature. ---But most of them have several lessons to attend.
#30360
A
when
B
which
C
where
D
what
Yesterday we went to visit the farm ____ my father used to work for nearly ten years.
#33655
A
in which
B
that
C
where
D
which
There was a fierce debate about _____we should go on with experiments on creating new life.
#31744
A
which
B
whether
C
that
D
What
I’ll go to fight in the battle __________ you go or not .
#33713
A
no matter
B
whether
C
even though
D
if
I’m sorry you’ve been waiting so long,but it’ll still be some time_____Tom gets back.
#30381
A
when
B
before
C
after
D
since