They are happy to have two days___to volunteer and help othersA.on B.of C.off D.in
问题描述：
They are happy to have two days___to volunteer and help others
A.on B.of C.off D.in
答
off C
放假两天
答
The answer is C. To have two days off means 放假两天/放两天假.
答
C.off
have two days off放两天假