There is more space in the high﹣speed train and the journey becomes more ．（ ）
A．seriousB．boring
C．dangerousD．comfortable
Could you tell me why you learn English so well？
It's very simple， you study， grades you will get．（ ）
A．The harder； better
B．The harder； the better
C．Harder； better
D．Harder； the better
It's very important for us to keep ．
You are right．We should learn how to protect ourselves when we're in trouble．（ ）
A．rapidB．safeC．luckyD．social
I like the number "9" best， because I think it stands for" long lasting"．
Me， too， So I choose floor to live on．（ ）
A．nineB．ninthC．the nineD．the ninth
Where did you buy that beautiful hat， from a shop or a supermarket？
，I am used to shopping online． （ ）
A．NeitherB．EitherC．BothD．None
Have you ever seen film Ne Zha？
Yes， I have， It tells us different story of Ne Zha．（ ）
A．a； anB．an； theC．a； theD．the； a