—Why do you look so puzzled?—Oh，I ________ over a most difficult maths problem.
#99720
A
thought
B
have thought
C
am thinking
D
think
—Peter！Let's hurry.The boss is coming.—Oh，I was afraid that we ________ her.
#99721
A
miss
B
had missed
C
will miss
D
have missed
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
—Jack is always studying hard and does well in all subjects. —No wonder he ________ to be admitted to Beijing University.
#99723
A
is expecting
B
will be expected
C
is expected
D
will expect
Just an hour ago he was telling me on the phone that he ________ home right after the work.
#99724
A
comes
B
came
C
would come
D
will come
Tom is very happy in China during this period because his Chinese ________ every day.
#99725
A
has improved
B
is improving
C
improved
D
is improved
—I guess you can buy such a smart phone for 300 dollars. —I could just two months ago，but the price ________ by 20%.
#99726
A
went up
B
had gone up
C
has gone up
D
goes up
The London 2012 Olympic Games marks the third time that London ________ the right to host the modern Olympics.
#99727
A
had had
B
has
C
had
D
has had
—Help me out in the kitchen and I ________ you to a fresh pot of coffee. —Sounds good.
#99728
A
will treat
B
treat
C
am treating
D
have treated
Because the shop ________，all the Tshirts are sold at half price.
#99729
A
has closed down
B
closed down
C
is closing down
D
had closed down
The singer and dancer ________ come to the party tonight.
#99730
A
is to
B
are to
C
are going to
D
was to
(2013·辽宁，22)He was unhappy when he sold his guitar.After all，he________it for a very long time.
#99731
A
has had
B
had had
C
has
D
had
(2013·山东，27)—Oh no! We're too late.The train________.— That's OK.We'll catch the next train to London.
#99732
A
was leaving
B
had left
C
has left
D
has been leaving
(2013·江苏，25)—Could I use your car tomorrow morning?—Sure.I________a report at home.
#99733
A
will be writing
B
will have written
C
have written
D
have been writing
(2013·江苏，21)Generally，students' inner motivation with high expectations from others________essential to their development.
#99734
A
is
B
are
C
was
D
were
(2013·湖南，34)—I don't understand why you didn't go to the lecture yesterday afternoon.—I'm so sorry.But I________my homework.
#99735
A
had done
B
was doing
C
would do
D
am doing
(2013·湖南，26)If nothing________，the oceans will turn into fish deserts.
#99736
A
does
B
had been done
C
will do
D
is done
(2013·湖南，22)“What do you want to be？”asked Mrs.Crawford.“Oh,I________president，”said the boy, with a smile.
#99737
A
have been
B
am
C
was
D
will be
(2013·北京，32)—So what is the procedure?—All the applicants ________ before a final decision is made by the authority.
#99738
A
interview
B
are interviewing
C
are interviewed
D
are being interviewed
(2013·北京，28)Hurry up! Mark and Carl ________ us.
#99739
A
expect
B
are expecting
C
have expected
D
will expect