—Why were you so late for work today?
— __________ to the office was very slow this morning because of the traffic.
| A．Driving | B．I drove |
| C．To drive | D．That I drove |
Before the first nonstop flight made in 1949, it_____ necessary for all planes to land for refueling.
| A．would be | B．has been | C．had been | D．would have been |
Students who pass the test will be ______ to the next grade, as has been announced.
| A．possessed | B．promoted | C．proposed | D．appealed |
When choosing a product, I sometimes try to figure out the meaning___ to its brand name.
| A．attaching | B．having attached | C．to attach | D．attached |
There is hardly an environment on earth ______ some species of animal or other have not adapted successfully.
| A．to which | B．in which | C．for which | D．on which |
—I don’t feel like going out. Why don’t we just stay home and watch TV instead?
— ______ You promised to take me out for dinner and to the theatre on my birthday.
| A．Great! | B．Why me! | C．Come on! | D．Not at all! |