—How long have you known the doctor ? — he helped me three years ago.
#58435
A
When
B
Before
C
Because
D
Since
推荐题目
—What’s the matter with you? You look so worried.-- I don’t know ___________ the problem.
#57173
A
what to solve
B
how to solve
C
to solve what
D
how can I
Which do you prefer to use to keep in touch with your friends,QQ__________MSN?
#56400
A
and
B
but
C
or
D
so
________ I’m thirsty , __________ I drink some water.
#56504
A
Because ; so
B
So ; because
C
Because ; /
D
So ; /