重为6N的小球用细线悬挂在天花板上，用力的示意图画出它所受的重力G．
小球所受的重力竖直向下，从球的重心竖直向下作重力的示意图，如图所示．
Last year, Bob earned _____ his brother, who has a better job.
A．twice as much money as
B．twice as many money as
C．as twice more money than
D．twice as more money as
句型转换。
1.He started to learn the piano when he was five years old.(同义句)
He started _____ the piano at _____ _____ _____five.
2.He was first in the competition. (同义句)
He _____ _____ _____ _____in the competition.
3.I took part in the school football team last year.
I _____ _____the school foot ball team last year. (同义句)
_____ _____you _____ part in the school football team.(对划线部分提问)
4.He hiccupped for 69 years and 5 months. (对划线部分提问)
_____ _____ _____ he _____?
5.I was born in Beijing in 1988. (对划线部分提问)
_____ and _____ _____ you _____?
school foot ball team last year. (同义句)