The world is a fine place and _______ fighting for.
A. worth
B. worthy
C. worthwhile
D. worthied
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He is not ______ of the trouble of kicking.
A. worth
B. worthy
C. worthwhile
D. worthied
The unfurnished room has no furniture, no decorations, just the four ______ walls.
A. bare
B. hollow
C. vacant
D. empty
When ____________ , ice will be changed into water.
A. heating
B. heated
C. having been heated
____________ the cause, we were able to propose a remedy.
A. having found
B. to find
C. finding