—Shall we go to the Great Wall on National Day?—It’s a great idea ,__________we don’t have enough money.
#58196
A
and
B
but
C
or
D
then
推荐题目
—Hurry up! The bus is coming. —Wait a minute. Don’t cross the street _______ the traffic lights are green.
#58477
A
until
B
after
C
while
D
since
