I am sorry he has not told me his name on the phone because_______helps if I know who I am talking to．
| A．it | B．he | C．one | D．its |
The visiting Minister expressed his satisfaction with his talk,__________ that he had enjoyed his stay here.
| A．having added | B．to add | C．adding | D．added |
. --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 |
. I just don't understand_____________ that prevents so many Americans from being as happy as one might expect.
| A．why it does | B．what it does |
| C．what it is | D．why it is |
. 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 |
The fire started in the basement and quickly____________ to the first floor where it destroyed all the______________ in the language lab.
| A．was spreaded;furniture and equipments |
| B．was spreaded ;furniture and equipment |
| C．spread;furnitures and equipments |
| D．spread ;furniture and equipment |