---Who’s the man talking to our teacher?---A professor_____a visit our school.
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A
pays
B
to pay
C
paid
D
paying
推荐题目
_______ on time, this medicine will be quite effective.
#98430
A
Taking
B
Being taken
C
Taken
D
Having taken
The international agreement, _______ encourage children not to smoke and help people to kick the habit, was signed on 27 February.
#96359
A
intending to
B
being intended to
C
intended to
D
to intend to
The two old sisters，_______ so long，held each other and burst into tears．
#98165
A
being separated
B
having been separated
C
having separated
D
had been separated
As soon as she entered the room, the girl caught sight of the flowers ________ by her mother.
#96730
A
buying
B
being bought
C
were bought
D
bought
The boy pretended ______ his homework, when his parents came back home.
#97990
A
to do
B
do
C
doing
D
to be doing