It seems that oil______from this pipe for some time.We’ll have to take the machine apart to put it right.
#104361
A
had leaked
B
is leaking
C
leaked
D
has been leaking
推荐题目
When I got home, I _____ I had left my wallet in the taxi
#102177
A
was realizing
B
realized
C
have realized
D
would realize
Selecting a mobile phone for personal use is no easy task because technology ____ so rapidly.
#100268
A
will change
B
has changed
C
will have changed
D
is changing
---Remember how we met for the first time, Dick?---Of course I do. You _________ to the teachers' office hurriedly and ___________ me.
#101575
A
had walked; weren't noticing
B
were walking; didn't notice
C
had been walking; noticed
D
walked; had noticed