问题详情

27 McGrady plays basketball so well .
28 Yao Ming missed several games .
29 There are very few people on the Earth .
30 Everyone will have to contribute .
A that his teammates cannot help admiring him.
B that he is often yelled at by the coach
C who can play basketball so well
D because he had been injured
E if Houston hopes to win
F since he returned请帮忙给出正确答案和分析，谢谢！