【正文】
12..We ___(learn) about 4000 English words by the end of last term.13. I (wait) he _____(finish) his homework.14. We were surprised at what she _____already _____(do) _didn39。t have sung a song to us before she danced. began to climbed the mountain after they had bought all the food and drink.(否定) They did not begin to climbed the mountain after they had bought all the food and drink. 10:00 , I had been very hungry. (改一般疑問) Had you been very hungry by 10:00 am? had already pleted the project when I arrived.(改一般疑問)Had lucy already pleted the project when I arrived. the time he got to the airport, the plane had taken off. (改一般疑問) Had th eplane taken off by the time he got to the airport?7..He had broken his arm when I saw him.(對劃線部分提問) How was he when you saw him? he had read the note, he ate it. (對劃線部分提問)What did he do when he had the note?9..Jack didn’t go to the cinema because he had seen the film. (對劃線部分提問)Why did Jack not go to the cinema? had had the toys for ten years before we gave them to the child. (對劃線部分提問)How long did you have had the toys before you gave them to the child? had written the book by the end of 1960. (對劃線部分提問)What had she written by the end of 1960? cooked the dumplings. We ate them up. (用過去完成時連接兩句) We ate the dumplings after we had cooked them.’s father mended the car. It was broken. (用過去完成時連接兩句)The car had broken before Jim39。 (arrive).5. I __________ (turn off) all the lights before I ____________ (go) to bed.6. Paul __________ (go) out with Jane after he __________ (make) ______t go …h(huán)ad been 16. hasn39。t sold the ticket when she came. 2. She hadn39。t begin to climb the mountain after they had bought all the food and drinks.4. Had you been very hungry by 10:00 ? 5. Had Lucy pleted the project when I arrived yet? 6. Had the plane taken off by the time he got to the airport? 7. What had he done when you saw him? did he do when he had read the note? 9. Why di