The past two years ________ a sharp rise in oil price，which adds to the burden of auto transportation industry.
#99722
A
witnessed
B
has witnessed
C
is witnessing
D
witnesses
推荐题目
—How long _____you ______ here? —About a week. Afterwards I will go to Beijing.
#103209
A
are; staying
B
have; stayed
C
did; stay
D
do; stay
We’d better take umbrellas—I’m sure it _____ when we arrive in London; it’s always wet there at this time of year.
#102671
A
will rain
B
is raining
C
will be raining
D
would rain
By the time Billy was 6, he in the sea.
#101498
A
had already swum
B
was already swimming
C
has already swum
D
already swam
The calculations, had they been done by hand, ______all practical value by the time they were finished.
#99937
A
had lost
B
would lose
C
should have lost
D
would have lost
I would have gone to my cousin’s birthday party last night, but I ______ available.
#100506
A
was
B
had not been
C
was not
D
would not be