1.formostpeopleinChinathebikeisstilltheirmainm___oftransportation.

2.---mum,what type of bike should i buy?
---choosing the right bike d___ on what you want to use it for.
3.---how do you think i can travel around beijing?
---you can take the s___.it is safe and cheep.
4.---mr.zhang,how is my daugter getting on at school?
----don't w___about her.she is doing quite well at school.

可怜孩子，都被这些脑残考试题给害了。。。脑残姐姐是过来人，帮你一把，，，

1.means
2.depends
3.skates 还不给毒死。。。
4.worry

期待看到有用的回答！