Cho các từ và cụm từ : bằng, lớn hơn, nhỏ hơn, thể tích, khối lượng, phân tử khối, số mol. Chọn từ hay cụm từ thích hợp điền vào ô trống : a) Một mol H2SO4 có khối lượng ... (1) .. . một mol NaOH. b) 5,6 lít khí CO có số phân tử ... (2) ... số phân tử trong 5,6 lít O2 ở cùng điều kiện. c) 2,8 g CaO có số mol ...(3) ... số mol trong 2,8 g MgO. d) Khí CO có ... (4) ... bằng ...(5) .. của khí N2

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Question VI. Put the verbs in the correct form. 1. I enjoy (fish) _______________________ because it (be) _________________relaxing. 2. Jane will play chess after she (finish) _______________________school. 3. What ______________________your mother often (do) __________________ at weekends? 4. I think, in the future people (not play) _______________________ individual games. 5. We find (arrange) ___________ flowers interesting because it (help) ____________us relax. 6. I (not collect) ______________________dolls when I grow up. 7. We (go) ____________________to that village to do volunteer work last week 8. My uncle (move) ____________________to Da Lat in 2005. 9. My parents (buy) ____________________this house 20 years ago. 10. We (not take) ____________________photos when we came there . 11. The students (not be) ___________________at school on last Monday. 12. Lan (be) ____________________at home when we went out. 13. Where you (be) ____________________ last Sunday? 14. They (help) ____________________the elderly people cook food some days ago? 15. My father (not play) _________________any sport since last year. VI. Put the verb in the parentheses into correct tenses. 1. The sun always__________________ (rise) in the east. 2. In my country, it (not, rain)__________________ much in winter. 3. The moon (move)_______________ around the earth. 4. Mai (be) ___________ very happy because she has 3 good marks today. 5. I like (play)____________ tennis. 6. My brother (enjoy)____________ playing football. He usually (play)____________ football every afternoon. 7. My brothers (be, not)_____________ engineers. 8. Well, he is 40 years old, bald with a moustache. He (have)____________ large ears and he (wear) ___________ glasses. 9. They (have, not)______________ any money. 10. Hoa (visit)_________________ her parents once a year Giúp mik vs mai nộp r, hứa vote 5*và ctrlhn ạ !!!!