The boy was so tired that he fell asleep _______ his mother could take off his clothes.
#30840
A
before
B
after
C
while
D
when
推荐题目
All the photographs in this book, _______ stated otherwise, date from the 1970s.
#31571
A
until
B
once
C
if
D
unless
—Will you go to Tom's birthday party tomorrow? —No，________invited to, for she is the last person I'd like to see.
#30810
A
if
B
until
C
when
D
even though
—Would you like to come to dinner tonight？ —I’d like to, ___ I’m too busy.
#80540
A
and...
B
so
C
as...
D
but
He is so busy.He cannot afford enough time with his son________he wants to.
#30244
A
even if
B
as if
C
because
D
before