17. ________ is expected, according to the on-line survey, is that prices of houses will not go up any longer.
| A．It | B．As | C．Which | D．What |
--Can I help you?
--I'd like to buy a present for my father's birthday, ___________ at a proper price but of great use.
| A．one | B．anyone | C．that | D．everything |
My pain ___________ obvious the moment I walked into the room, for the first man I met asked me pitifully:" Are you feeling all right?"
| A．must be | B．must have been |
| C．could be | D．could have been |
__________ in thought，he almost ran into the car in front of him．
| A．Losing | B．Having lost | C．Lost | D．To |
_____________to somebody，a British person often shakes hands with the stranger.
| A．Introducing | B．To introduce |
| C．To be int．roduced | D．On being introduced。 |
Do you consider it any good__________the truck again?
| A．to repair | B．repairing |
| C．repaired | D．being repairing |