If you want to study in foreign countries, ____ good knowledge of the culture is regarded as ____ must for you to live happily.
| A．/; / | B．a; a | C．the; the | D．the; a |
.The vegetables didn’t taste very good.They＿＿＿＿too long.
| A．had been cooked | B．were cooked |
| C．had cooked | D．cooked |
—— Was the driving pleasant when you went to Mexico last summer?
—— No, it ＿＿＿＿ for four days when we arrived, so the roads were very muddy.
| A．was raining | B．had been raining |
| C．would be raining | D．rained |
I used to drink a lot of tea but these days I ＿＿＿coffee.
| A．prefer | B．preferred |
| C．have preferred | D．am preferring |
—— Can you give me the right answer?
—— Sorry, I＿＿＿＿.Would you repeat that question?
| A．hadn’t listened | B．haven’t listened |
| C．don’t listen | D．wasn’t listening |
——＿＿＿＿you ＿＿＿＿ the editor at the airport?
—— No, he ＿＿＿＿ away before my arrival.
| A．Have...met； has driven |
| B．Had...met； was driven |
| C．Did...meet； had been driven |
| D．Have...met； had driven |