1. Choose the best answer among A, B, C or D to complete the following sentence. Jean cloth _________from cotton in the 18th century. A. made B. is made C. is being made D. was made 2. Choose the word whose underlined part is pronounced differently from the rest. A. watches B. misses C. makes D. wishes 3. Choose the best answer among A, B, C or D to complete the following sentence. The students are looking forward to _________the result of the final examination. A. receives B. receive C. receiving D. received 4. Choose the sentence which has the same meaning as the given one. He finished his exercises on time. A. His exercises were finish on time. B. His exercises were finished on time. C. His exercises are finished on time. D. His exercises was finished on time. 5. Choose the best answer among A, B, C or D to complete the following sentence. They suggested that we _________to the gym after work. A. should go B. going C. go D. A & C 6. Choose the best answer that is made from the given cues. Are / we / fond / play / computer / not / grames A. Are you not fond of playing computer games? B. We are not fond of play computer games. C. We are not fond of playing computer games. D. We are not fond playing computer gamers. 7. Choose the word whose underlined part is pronounced differently from the rest. A. book B. pool C. school D. soon 8. Choose the best answer among A, B, C or D to complete the following sentence. It’s very kind _________you to help me. A. of B. to C. with D. for 9. Choose the best answer among A, B, C or D to complete the following sentence. You’re interested in fashion so much, _________? A. are you B. do you C. aren’t you D. don’t you 10. Choose the sentence which has the same meaning as the given one. “Why do you come here late?” she asked me. A. She asked me why I come there late. B. She asked me why I came there late. C. She asked me why I came here late. D. She asked me why you came there late. 11. Choose the best answer among A, B, C or D to complete the following sentence. Minh asked me what he _________do. A. has to B. had to C. will D. can 12. Choose the best answer among A, B, C or D to complete the following sentence. They have known each other _________they were children. A. for B. while C. to D. since 13. Choose the best answer that is made from the given cues. every / for / to / morning / health / your / day / do / good / is / exercise A. To do your morning exercises everyday is good for health. B. To do exercises everyday morning is good for your health. C. Do morning exercises for everyday is good to your health. D. To do morning exercises everyday is good for your healt. 14. Choose the sentence which has the same meaning as the given one. “Can you play the piano?:” he asked the girl. A. He asked the girl if she can play the piano. B. He asked the girl if he could play the piano. C. He asked the girl if she could play the piano. D. He asked the girl if she played the piano.

Cho các chất sau: NaOH; KOH; Ca(OH)2; Fe(OH)3; Mg(OH)2; Ba(OH)2. Số chất tác dụng với Al(OH)3 là * 4 6 5 3 Muối + B → muối + bazơ . B có thể là * bazơ không tan bazơ tan axit muối Cho các dung dịch sau: AgNO3; CuSO4; Fe(NO3)3; FeCl2; MgSO4; AlCl3. Có bao nhiêu dung dịch tác dụng với kim loại Fe? * 2 1 4 3 Cho các chất sau: NaOH; KOH; Ca(OH)2; Fe(OH)3; Mg(OH)2; Ba(OH)2. Số chất tác dụng với Ba(HCO3)2 là * 3 4 5 6 Cho các oxit sau: Al2O3; ZnO; CuO; Fe2O3; MgO. Có bao nhiêu oxit tác dụng với dung dịch HCl? * 3 2 5 4 Cho các chất sau: NaOH; KOH; Ca(OH)2; Fe(OH)3; Mg(OH)2; Ba(OH)2. Số chất tác dụng với Al là * 5 3 6 4 Cho các oxit sau: Na2O; K2O; CaO; BaO; CuO; Fe2O3; MgO. Có bao nhiêu oxit bazơ? * 7 6 4 5 Cho các kim loại sau: Mg; Al; Zn; Fe; Cu; Ag. Có bao nhiêu kim loại tác dụng với dung dịch H2SO4 đặc nóng? * 3 6 4 5 Cho các muối sau: CaCO3; K2CO3; MgSO3; BaSO4; FeS; CuS; NaHCO3. Có bao nhiêu muối tác dụng với dung dịch H2SO4 loãng? * 6 7 4 5 Cho các chất sau: Na2SO4; Na2SO3; NaHSO4; NaHCO3; CaCO3; Ca(HCO3)2; (NH4)2CO3. Có bao nhiêu muối tác dụng với dung dịch axit H2SO4 loãng? * 7 4 5 6

Ví dụ  1/căn x -2 hoặc 1/x-3 tại sao không cho mẫu lớn hơn 0 và mẫu nhỏ hơn 0 mà phải cho nó khác 0

Em đang cần gấp ạ ….,. Em đang cần gấp ạ , mai em thi roiif ạ

cho hình bình hành ABCD (A>90).Gọi H và K lần lượt là hình chiếu của A và C lên BD . M là giao của AB với BK ;N là giao của CD với AH chứng minh a) AHCK là hình bình hành b) MN;HK;AC đồng quy

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những hoạt động nào của con người cần bình đựng én õi để hô hấp

Tìm x biết a) $x^{2}$ (x=5) -9x =45 b) 9(5-x)+$x^{2}$-10x =-25

giúp minh voi aaaaaaaaaaaaaaaaaaaa

xem hộ e rút gọn đúng chưa ạ nếu đúng thì làm phần b hộ e(ko cần làm phần c)