—How do you spend your spare time? —I vo
题型：选择题
问题：
—How do you spend your spare time?
—I volunteer it to ____ sick kids in the hospital. [ ]
A. stand up
B. come up
C. put up
D. cheer up
—How do you spend your spare time?
—I volunteer it to ____ sick kids in the hospital. [ ]
A. stand up
B. come up
C. put up
D. cheer up