—What do you think we can do for our aged parents?
—You ________ do anything except to be with them and be yourself.
| A．don’t have to | B．oughtn’t to | C．mustn’t | D．can’t |
the weather, the sports meet will be held on time.
| A．In favor of | B．Regardless of | C．Apart from | D．Due to |
Mandy, ___ university student from Canada, teaches us ___ history of western art.
| A．an; the | B．a; the | C．the; / | D．the; a |
I'm sure you'd rather she went to school by bus，？
| A．hadn't you | B．wouldn't you |
| C．aren't I | D．didn't she |
Old-fashioned phones matter when wireless networks _____ in disasters.
| A．turn down | B．break down | C．turn out | D．break out |
Though I was tired out that evening, I _____ from falling asleep by the great pain in my knee.
| A．was prevented | B．had prevented | C．has prevented | D．am prevented |