He waited ________ the volcano became quiet and he was able to return two days later.
#80251
A
when
B
before
C
as
D
until
推荐题目
________ three times,but she still couldn’t follow what the old man said.
#31621
A
Having told
B
Having been told
C
She had been told
D
Though she had been told
—May I go now?—__________ you've finished your work, you may go. 
#29947
A
After
B
Although
C
Now that
D
As soon as
The Frenchman speaks ______.
#80381
A
French as well as Chinese
B
Chinese as well as French language
C
Chinese as well as French
D
the French language as well as Chinese.