—Tom, you look tired this morning. What’s wrong?—I was so busy that I didn’t go to bed________12 o’clock last night.
#57218
A
until
B
when
C
though
D
unless
推荐题目
You have coughed for several days, Bill. Stop smoking,________ you’ll get better soon.
#58062
A
but
B
after
C
or
D
and
I have only ten yuan with me, ___________ I can’t buy the expensive dictionary.
#56283
A
thought
B
but
C
so
D
because
— When did you go to bed last night? — ____________ I finished my homework.
#57749
A
Until
B
Not until
C
When
D
While
