—How long has John been here? — Two years, _______ he still has no friends.
#56711
A
and
B
so
C
but
D
or
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
