Jack was going out of the shop when he ran ____an old man who was coming in.
A. for
B. along
C. into
D. at
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Rather than____money, Miss. Black gave whatever she hasto the children in that village.
A. make
B. making
C. makes
D. to make
I find it hardto ____my gratitude to you for your kind help.
A. speak
B. express
C. say
D. tell
The nurse is even tender ____ the sick child than his parents.
A. at
B. by
C. to
D. with
A number of students in this class ____to Beijing once .
A. were
B. have been
C. is
D. has been