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vdung.clc
2 năm trước
2 đèn có điện trở 6 ôm , 12 ôm cùng hoạt động bình thường với hiệu điện thế 6V. khi mắc nối tiếp bóng đèn vào hiệu điện thế 12V thì đèn có sáng bình thường không
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4. Complete the sentence with the verbs in the box. Each verb is used once. is, isn't, are, aren't, do, don't, does, doesn't, did, didn't, was, wasn't, were, weren't, have, haven't, has, hasn't 1. ................. you ................. a nice holiday in Greece last year? 2. There ................. any cars on the road this morning, but there ................. a lot of people walking. 3. Hurry up! We ................. got time. We ................. late for class. 4. ................. your sister the chief engineer? – No, she ................. . 5. The tea cups ................. in the china cabinet. Somebody took them away. 6. Garth ................. this kind of thing frequently. 7. My roommates and I ................. the laundry every second week. 8. I can't complete my assignment because he still ................. my notes. 9. He hardly came to the meeting on time. His colleague ................., either. 10. My sister ................. have to wear uniform at work. 11. His cousin ................. at the party last weekend because of her illness. 12. Today is Monday, so yesterday ................. Sunday. 13. They ................. drive to work. They take the bus. 14. I don't think she ................. such long hair.

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