It would be a good idea to use a plastic bottle, ______ cut off, as a container to grow young plants in.

I ___ a Leaguage member for six years

People are advised not to smoke at home, since passive smoking is ________ to people around them. Which is Not proper for the blank

We should study the new traffic rules and 1earnhow___________ ourselves．

下列句子中没有通假字的一项是（ ）