______ this afternoon, you would have to come again next week．
| A．The boss didn’t return | B．The boss were not to return |
| C．Were the boss not to return | D．Didn’t the boss return |
___________ healthy, with easy access to affordable medical care, is still a dream for many people with medicine prices ___________ sharply.
| A．Keep; rise | B．Keeping; rising |
| C．To keep; risen | D．Having kept; to rise |
A foreign language like English is difficult to learn, so you ____________ work too hard.
| A．can’t | B．must | C．shouldn’t | D．ought to |
Mr. Smith works as a government official now, but he ____________ in a middle school for 5 years.
| A．has worked | B．worked | C．had worked | D．had been working |
I make most of my money by writing books but I do __________ magazines sometimes.
| A．refer to | B．see to | C．contribute to | D．add to |
They ___________ him to drop the plan, but he was determined to carry it through to the end.
| A．urged | B．persuaded | C．encouraged | D．suggested |