Experts suggest that teenagers spend at least 30 minutes exercising, five times a week. Walking and riding your bike , and .
A. counts; so are school sports
B. count; school sports count, either
C. count; so do school sports
D. counts; so school sports do
网友回答
A. counts; so are school sports
B. count; school sports count, either
(答案→)C. count; so do school sports
D. counts; so school sports do
解析：“专家建议青少年每周锻炼5次每次至少30分钟。散步和骑自行车很重要学校运动一样重要。”第一空考察主谓一致第二空考察倒装，答案C。