根据句意和所给首字母提示，完成下列单词
Now we can take the s________ in many big cities，such as in Beijing and Shanghai．
It takes them twenty m________ to get to the hospital．
Don’t do it l________ that．Let me teach you．
A few students in our school ride their b________ to school every day．
It’s about two k________ from my school to the new supermarket．