The trouble with such resources as coal, oil and gas ______ that they are not renewable.
#99825
A
was
B
are
C
have been
D
is
推荐题目
We haven’t seen each other for many years since we last time.
#100115
A
separate
B
separates
C
separated
D
separating
The World Food Prize, created in 1986, is _______each year to people who have advanced human development by improving the quality, quantity or availability of food in the world.
#101350
A
awarded
B
rewarded
C
presented
D
represented
So far this year we ______ a fall in house prices by between 5 percent and 10 percent.
#102338
A
saw
B
see
C
had seen
D
have seen
— We thought he would have got the job.— What a pity! He ______too nervous when interviewed.
#99536
A
was
B
had been
C
has been
D
would have been
When I came into the teacher’s office, he ________ on the phone.
#101238
A
was speaking
B
spoke
C
had been speaking
D
had spoken
