He was just falling asleep _____ there was a loud knock on the door.
#56552
A
while
B
when
C
then
D
until
推荐题目
____ the Forbidden City is almost 600 years old, _____ it is still very beautiful.
#58013
A
Although; but
B
/; although
C
Although; /
D
Because; so
Jenny enjoys reading and spends a lot of money on books __ she is not rich.
#55182
A
if
B
when
C
because
D
though