_    we were walking along the river, we heard a cry for help.
#55724
A
While
B
Until
C
After
D
Before
推荐题目
The camera is too expensive ________.
#56131
A
for him to buy it
B
so that he couldn’t buy it
C
so that he can’t buy
D
for him to buy
I don’t like apples, bananas ____ pears.
#57389
A
or  
B
and
C
but
D
so
---_____ have you lived in England?    --- For 3 years.
#57221
A
How long
B
How much
C
How often
D
How many