—When did he leave the classroom?—He left _____you turned back to write on the blackboard.
#80113
A
the minute
B
the time
C
until
D
before
推荐题目
—— The experiment is of particular importance.—— I see. We won’t carry on with it _______ we can get the good equipment.
#33750
A
until
B
unless
C
whether
D
after
--- What do you think about the new teacher?--- _________ the new teacher is an elegant lady, she can be extremely difficult to work with.
#80225
A
As if
B
As long as
C
Because
D
While
Henry has packed up his clothes, ______ he can leave here as soon as possible when his fathercomes.
#29952
A
because
B
even if
C
if
D
so that
