--Hurry up! The bus is coming.--Wait a minute. Don’t cross the street       the traffic lights are green.
#56768
A
until
B
after
C
while
D
since
推荐题目
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