I met a friend of mine _________ I was walking along the street.          
#56938
A
before
B
as
C
because
D
since
推荐题目
“______ do you exercise?” Three times a week.”
#55938
A
How long
B
How often
C
How far
D
How many
This problem is ______ difficult __________.
#57835
A
so; that few of us can do
B
so; that few of us can do it
C
too; for anyone of us to do
D
too; for anyone of us to do it