问题
选择题
4. Spend your time just on the things you find _______.
A．being worth your while
B．them worth doing
C．worth being done
D．to be worth doing
答案
答案：D
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4. Spend your time just on the things you find _______.
A．being worth your while
B．them worth doing
C．worth being done
D．to be worth doing
答案：D