She devoted herself __________ to her research and it earned her a good reputation in her field.
| A．strongly | B．extremely | C．entirely | D．freely |
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 |