It was not a good idea to go skating. You __________your leg.
| A．can break | B．could break |
| C．could have broken | D．could have been broken |
—Thank you for your tea.
—You are so kind to say so，but you________it at all.
| A．didn’t drink | B．aren’t drinking |
| C．don’t drink | D．hadn’t drunk |
While intelligent people can often________the complex，a fool is more likely to complicate the simple.
| A．sacrifice | B．substitute |
| C．simplify | D．survive |
Seeing a large crowd at the street corner，I became aware of________unusual happening.
| A．anything | B．something |
| C．everything | D．nothing |
It is said that________wool produced in Australia is of________high quality.
| A．/；/ | B．the；/ |
| C．the；a | D．the；the |
—Would 13∶00 be convenient?
—________，but I’ll have to check my schedule for sure.
| A．It won’t do | B．It should be fine |
| C．That’s the deal | D．It’s up to you |