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minhquang12309
2 năm trước
Cho S =1-3+3 mũ2 -3 mũ 3+.....+3 mũ98- 3 mũ 99 A. Chứng minh rằng S là bội của -20 B. Tính s từ đó suy ra 3 mũ 100 chia.cho 4 dư 1
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III. Put the verbs in brackets into Present simple or Present continuous tense. Let’s look at that photo. It is Sunday evening, my friends and I (1. be)……….at Linda’s birthday party. Linda (2. wear)……….…….a beautiful long dress and (3.stand)………..……next to her boyfriend. Some guests (4. drink)……..………..wine or beer in the corner of the room. Some of her relatives (5. dance)………………in the middle of the room. Most people (6.sit)……….………on chairs, (7. enjoy)………..…………foods and (8. chat)…………….with one another. We often (9. go)……………to our friends’ birthday parties. We always (10. dress)………….well and (11. travel)……….by taxi. Parties never (12. make)………..us bored because we like them.

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