一What are you going to do this weekend?一Well，we’ll clean up the city parks _______ it rains .
#38406
A
if
B
until
C
while
D
unless
推荐题目
---I’m sorry ,Mr.Wang. I _____ my homework at home .---That’s OK. But don’t forget ____ it to school tomorrow.
#43711
A
forget , to take
B
left , to bring
C
forgot , to bring
D
left , to take
---___________ is the Summer Palace from here?---About three kilometers away. You can take the No.35 bus.
#36650
A
How long
B
How far
C
How often
D
How much
——Someone called you just now.——I know. But I was busy at that moment. When I called back, there was no .
#42891
A
voice
B
sound
C
answer
D
result