—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
This story is too difficult for us. _____ read something easier.
#55137
A
Why not
B
Why not to
C
Why not you
D
Why don’t
–______do you spend your weekends, Susan? - I usauslly learn to play the piano in a music club.
#56068
A
What
B
How
C
Why
D
Where
____ it snowed heavily yesterday, nobody in our class missed the lesson．
#58529
A
Though
B
Because
C
Unless
D
Since