【2014年江苏省南通市中考】─Do you know second-hand smoke? ─To prevent our health and memory.
_____ he was very tired , ___ he didn’t stop working .
It’s important ________.
----My mother is ill, so I have to look after her. ----__________.
Does Bob go to work___ bus or __ foot ?
---_____ do you have an English party ? -----Once a month .