My father and my mother have been married for 30 years, and never once ______ with each other.
#99794
A
they have quarrelled
B
did they quarrel
C
had they quarrelled
D
have they quarrelled
推荐题目
When I got on the bus,I_____I had left my wallet at home.
#102653
A
was realizing
B
realized
C
have realized
D
would realize
—What a mistake!—Yes. I________his doing it another way, but without success.
#99176
A
was suggesting
B
will suggest
C
would suggest
D
had suggested
Although medical science __________ control over several diseases,what worries us is that some of them are returning.
#99526
A
achieved
B
has achieved
C
will achieve
D
had achieved
Unfortunately,when I got there,she ,so we had only time for a few words.
#104545
A
just left
B
had just left
C
has just left
D
was just leaving
-Has Tommy finished his homework yet?-I have no idea; he ____ it this morning.
#104683
A
was doing
B
had been doing
C
has done
D
did