Doctors should take special care when treating children because their breathing rate is different from _____ of adults.
#15621
A
one
B
those
C
that
D
some
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－How is Helen in the new school?－She is doing very well. There is to worry about.
#56748
A
something
B
anything
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nothing
D
everything
Generally speaking, clothes made of man-made materials is less comfortable than _____ made of natural fibers like cotton, wool or silk.
#15662
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that
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it
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those
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—Shall I sit at this end of the boat or the other end? —If you keep still, you can sit at _____ end.
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neither
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each
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either
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You can find whatever you need at the shopping centre, ___ is always busy at the weekend.
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that
B
where
C
what
D
which