Drivers must stop when the traffic lights _____ red.
#99314
A
turn
B
will turn
C
turned
D
were turning
推荐题目
 ---- My leg hurts a lot----You'd better go to the doctor and have it ____.
#101057
A
examined
B
being examined
C
to be examined
D
examining
—I'm not finished with my dinner yet.—But our friends________for us.
#99187
A
will wait
B
wait
C
have waited
D
are waiting
----We could have come here much earlier in your car. ----I agree. But it _____. 
#99941
A
is repaired
B
was being repaired
C
had been repaired
D
is being repaired