Clean water and fresh air are essential for our daily life, _______ we can’t live.

We can go to a _______ to mail things.

Oh, Jack’s not here thesedays. Is he ill?—________. His mother told methat he was in hospital.

I like reading books.—_________ It’s great fun.

I _____ in New York for two years, but I’ve never regretted my final decision to move back to my motherland