_______ are very friendly to us.
A. Both they
Both of them
C. itself
D. it
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Most of the problems are easy. Only _______ are difficult.
A. few
B. little
C. a few
D. a little
We should know how to help _______.
A. another
B. other
C. others
D. the others
Don’t hurry. We still have _______ time left.
A. little
B. few
C. a little
D. a few
He has two daughters. _______ of them is a teacher.
A. Both
B. Neither
C. All
D. None