It is not right ____ in public places.
E-mail is very popular today. People seldom write letters now,_______?
- You’d better because you have to drive back home. - OK.
Bamboo can __ paper.
-_ _ you _ _ the film Harry Potter 5? - Not yet. I’ll see it this evening.
- Must I clean the Lable now? - No, you ____. You may do it later.