Here you are! This is one of the keys ____ the lock.
A.of |
B.for |
C.to |
D.in |
While you are doing math exercise, put a calculator(计算器) ____ to help you.
A.in hand |
B.at hand |
C.by hand |
D.on the hand |
No matter how hard it is, just go on and never ____.
A.give up |
B.give away |
C.give in |
D.give off |
Everyone in the class studied very hard since no one wanted to _____.
A. fall down B fall off C. fall behind D. fall out
My uncle died ____ heart disease last summer.
A.of |
B.from |
C.out |
D.away |
It was a pity that the great writer died ____ his work unfinished.
A.for |
B.with |
C.from |
D.of |