(2013·昆明一模)The landlord wants to ________ the rent by $ 30 a month, which I think is unacceptable.
#11413
A
make up
B
take up
C
cut up
D
put up
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The course book is a little too difficult, but we can ______ it to suit the needs of the students.
#10871
A
adapt
B
adopt
C
operate
D
abandon
(2013·高考湖北卷)Carbon dioxide，which makes a________between us and the sun，prevents heat from getting out of the atmosphere easily，so the earth is becoming warmer.
#11928
A
difference
B
comparison
C
connection
D
barrier
By the end of last month, we had sold ____________ as we did last year.
#14199
A
as twice many cups
B
twice cups as many
C
twice as many cups
D
as many cups twice
The official ________ to say more about the plan, so the details of it remain secret.
#11127
A
agreed
B
declined
C
attempted
D
declared