The old couple have been married for 40 years and never once ______ with eachOther.
#81319
A
they had quarreled
B
they have quarreled
C
have they quarreled
D
had they quarreled
推荐题目
We have been on duty for four hours and ＿＿＿＿.
#83920
A
now comes your turn
B
now does your turn come
C
now your turn comes
D
comes now your turn
Only when you are living in a foreign country the importance of English.
#81557
A
you can realize
B
you realized
C
did you realize
D
can you realize
Form then on we never saw her again, nor ________ from her.
#566
A
heard we
B
had we heard
C
we have heard
D
did we hear
Not until all the fish died in the river _____ how serious the pollution was.
#82352
A
did the villagers realize
B
the villagers realized
C
the villagers did realize
D
didn't the villagers realize