----How about the two of us chatting online? ---- ____ . It’s much cheaper than talking on the phone.
We must keep our room clean, for dirt and disease go______, you know.
To their great relief, the missing child returned home, ______, after an absence of two weeks.
Have your working conditions improved?---No, ______than before, I’m afraid.
The task is too much for me, so I can’t carry on ______any longer. I must get some help.
I haven’t seen______ this since I collected stamps.