1.your weight.
2.who is taller than David?
I think Wang Bing is taller than him.
3.Your Chinese and English are both good,but your math is poor.
4.Do boys jump higher than girls?
yes.
5.Mike runs as fast as Ben.
6.Does Jim swim faster than David?
No,he doesn't.
7.Gao Shan's brother is taller than David.