(2013·北京海淀区期末)John has always wanted an ipad and he has just saved enough money to buy ________.
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A
one
B
it
C
this
D
that
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An interesting suggestion on how to measure the temperature on the moon has been______.
#13330
A
put on
B
put out
C
put down
D
put forward
It is reported that the scientists in our country are_______all possible way to control H7N9 flu.
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A
operating
B
solving
C
exploding
D
exploring
Bears ______ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
#13246
A
bring up
B
pack up
C
take up
D
build up