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
—Can I help you，sir?—Yes，I bought this radio here yesterday，but it______.
#103923
A
didn’t work
B
won’t work
C
can’t work
D
doesn’t work
—How long ____ you ____ in Singapore?—For just the weekend． I’ll be back next Monday morning.
#100619
A
have; stayed
B
are; staying
C
did; stay
D
do; stay
He walked down the hills, and ________ softly to himself.
#100068
A
sing
B
singing
C
sings
D
was singing