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【題目】I don’t know________.

【題目】The rubbish _____ is produced every day is becoming a serious problem in cities around the world.

【題目】_____ the morning of December 1st, 2006, the 15th Asia Games _____ in Doha(多哈).

【題目】The shoes were worn out, what’s more, they aren’t worth _____.

【題目】— Did you hear of Project Hope?

【題目】Don't worry about me. I________ make it by myself.

【題目】Friends are like books. You don’t need a lot of them________they are good.

【題目】Jim doesn’t get to school ________ bike. He usually gets________ his father’s car.

【題目】— Could you________how the accident happened?

【題目】—What did you do when you saw the car accident?