---How long have you known the doctor ? ---_________he helped me three years ago.
#56019
A
When
B
Before
C
Because
D
Since
推荐题目
The game has _______ meaning _______ you do your best to win.
#55523
A
little; unless
B
no; if
C
a; until
D
no; whether
It’s very nice_________you __________ my parents your best wishes.
#56017
A
of; sending
B
of; to send
C
for; to send
D
for; sending
The city park will be cleaner ___________ people stop dropping litter here and there.
#56719
A
while
B
if
C
unless
D
before
The girl handed everything _____ she had picked up in the street to the police.
#57601
A
which
B
in which
C
that
D
all