13. --May I put my luggage on the seat beside you, sir?--__________.
twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
, he wanted to buy his son a cheap toy for his birthday.
They considered a computer, which was considereda great help in their work.
---Is there anything wrong, Bob? You look sad. ---Oh, nothing much.In fact, I of my friends back home.
---Bill, would you like to go camping sometime this month? ---. ---Probably just the two of us.