1 vật có khối lượng 1kg được thả vào trong nước thì thấy vật chìm 1 nửa trong nước cho trọng lượng riêng của nước là 10000N/m3 a)tính lực đẩy Ác si mét tác dụng lên vật và biểu diễn các lực tác dụng vào vật (tỉ xích 1cm với 5N) b)tính thể tích của vật giúp e

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EXTRA EXERCISES I. Give the correct form of verb in brackets. 1. Julie …………………………… (read) in the garden. 2. What …………………………… (we/have) for dinner tonight? 3. Jannet often…………………………… (come) over for dinner. 4. She …………………………… (not study) now, she …………………………… (watch) TV. 5. How often …………………………… (you/go) to restaurants? 6. She …………………………… (take) a salsa dancing class every Tuesday. 7. Take your umbrella, it …………………………… (rain) 8. …………………………… (you/like) spicy food? 9. …………………………… (she/ often/ go) to Scotland? 10. We…………………………… (not/drink) much wine. II. Complete each sentence with the suitable form of word provided in bracket. 1. Scotland is ……………………… for its rich culture and its amazing natural beauty. (FAME) 2. The council has promised to deal with the problem of ………………………among young people. (EMPLOY) 3. The ………………………between Vietnam and America is good.(FRIEND) 4. The ………………………anthem of Viet Nam is sung.(NATION) 5. The Glastonbury Festival in England is a ………………………of music and it attracts thousands people. (CELEBRATE) 6. California is home to the most ………………………theme park in the world.(ICON) 7. They enjoy the ………………………atmosphere here. (PEACE) 8. The ……………………founder of the city was Helenus, son of Priam, and Virgil. (LEGEND) 9. Mary arranged flowers the most ………..………………in the contest. (ATTRACT) 10. You’ll meet the tour guide on your ……………………at the hotel. (ARRIVE) giải giúp mình với