—Do you enjoy ______ a volunteer? —If yo
题型:选择题
问题:
—Do you enjoy ______ a volunteer?
—If you want _______ this, you’d better join us. [ ]
A. being; knowing
B. to be; knowing
C. being; to know
D. to be; to know
—Do you enjoy ______ a volunteer?
—If you want _______ this, you’d better join us. [ ]
A. being; knowing
B. to be; knowing
C. being; to know
D. to be; to know