Choose the best answer by circling its corresponding letter A, B, C or D . 1. My dad likes _______ gardening every weekend, so we always have fresh vegetables to eat. A. making B. doing C. planting D. growing 2. We need some pork, it is the reason we go to the _________ and buy some. A. drug store B. butcher’s C. wet market D. tailor’s 3. It’s a very busy airport. There are planes _________ and landing every 5 minutes. A. going up B. taking off C. getting up D. driving off 4. After using, you should _________ the lamp to save energy. A. take off B. go off C. turn off D. get off 5. The doctor says my father will become ill _________ he stops smoking. A. until B. when C. unless D. if

nhúng 1 miếng nhôm kim loại nặng 5g vào 250ml dung dịch CuSO4 0,4M sau 1 thời gian lấy miếng nhôm ra rửa sạch phơi khô cân nặng 5,69g a) tính khối lượng đồng thoát ra bám vào miếng nhôm b) tính nồng độ mol của các chất sau phản ứng

1. Choose the word which is pronounced differently from the others. (0,25m) A. these B. brother C. think D. that 2 .Choose the word having different stress from the others(0,25m) A. collect B. pollute C. teacher D. enjoy giúp mik mik cần gấp mik hứa đánh giá 5sao kèm lời cảm ơn ạ

a)(x-37)×4+9,2=87 b)82+(x-47)×3=116 c)98:(2 × x)+1=24 Mọi người giúp em em cần gấp

giúp mình nhé cứu mình mình ccaanf gấp

Exercise 4. Cho dạng đúng của động từ trong ngoặc 1. If I (study) ______________, I (pass) ____________________ the exams. 2. If the sun (shine) __________________, we (walk) _______________ into town. 3. If he (have) ____ a temperature, he (see) ____ the doctor. 4. If my friends (come) ____, I (be) ____ very happy. 5. If she (earn) ____ a lot of money, she (fly) ____ to New York. 6. If we (travel) ____ to Hanoi, we (visit) ____ the museums. 7. If you (wear) ____ sandals in the mountains, you (slip) on the rocks. 8. If Giang (forget) ____________________ her homework, the teacher (give) ____________________________ her a low mark. 9. If they (go) ____ to the disco, they (listen) ____ to loud music. 10. If you (wait) ____ a minute, I (ask) ____ my parents. 11. If I (come) ____ home earlier, I (prepare) dinner. 12. If we (live) ____ in HCM city, my boyfriend (visit) ____ us. 13. If Tung and Thanh (be) ____ older, they (play) ____ in our football team. 14. If he (be) ____ my friend, I (invite) ____ him to my birthday party. 15. If Xuan (study) ____ harder, she (be) ____ better at school. 16. If they (have) ____enough money, they (buy) ____ a new car. 17. If you (do) ____ a paper round, you (earn) ____ a little extra money.

Excirse 3: Hoàn thành câu với từ cho sẵn (chú ý chia động từ) 1. If/you/mix/red/blue/get/purple. 2. If/Arsenal/win/they/be/top/the league. 3. It/rain/we/cancel/the match. 4. You/take/first bus/you/will/get/there on time. 5. You/need more helpers/I /can try/get some time off work. 6. Mary might/deliver your parcel/you/ask/her. 7. I/were/20/I would/travel/world 8. Jim/lent/us /car/we/could/go/party. 9. We/would/save £3.50 a day/we didn’t/eat any lunch. 10. Burglars/broke/into my house/they/find any money. 11. You/be very angry/I failed/my exam? 12. I/were/you/I/would/phone her/straight away. 13. You/loved me/you/buy me/a diamond ring. 14. I/knew/where she lived/I/go and see her. 15. You/went/to bed earlier you/would/tired.

Ô tô đi từ Hà Nội đến Hải Phòng hết 4 giờ. Khi đi theo chiều ngược lại ô tô đi hết bao nhiêu giờ, biết đi với vận tốc bằng 4/3 vận tốc cũ. giúp vs ạ

Excirse 1. Hoàn thành câu với từ cho sẵn 1. If we meet at 9:30, we (to have) ___________ plenty of time. 2. Lisa would find the milk if she (to look) _____________ in the fridge. 3. The zookeeper would have punished her with a fine if she (to feed) ___________________ the animals. 4. If you spoke louder, your classmates (to understand) _________ you. 5. Dan (to arrive) _____________ safe if he drove slowly. 6. You (to have) _______________ no trouble at school if you had done your homework. 7. If you (to swim) _______________ in this lake, you'll shiver from cold. 8. The door will unlock if you (to press) ____________ the green button. 9. If Mel (to ask) _______ her teacher, he'd have answered her questions. 10. I (to call) ________________ the office if I was/were you. Excirse 2. Hoàn thành câu với từ cho sẵn 1. If it (to be) ____________ warmer, we (to go) __________ swimming. 2. My parents (to buy) ______________________________ this house if the man (not/to sell) __________________________________ it to someone else. 3. If he (not/to fail) ______________________ his driving test, his parents (to lend) ______________________________________________ him their car. 4. If my uncle (to tell) ____________________ me the way to his office, I (not/to arrive) _____________________________ so late. 5. She (to be) _________________ at the airport if she (to read) ___________________________ the message carefully. 6. Lucy (not/to hurt) _____________________ her foot if she (not/to drop) _______________________ the old box on it. 7. If you (to use) ____ a sharp knife, you (not/to cut) ____ yourself. 8. If Victoria (to celebrate) _____________________ her birthday at home, I (to bring) ________________________ her some flowers. 9. We (to take) ____ the train to Edinburgh if it (to run) ____ on time. 10. If Max (not/to forget) _________________ his schoolbag, he (to give) __________________ you your USB flash drive.

yz( x + z ) + xz( z - x ) - xy( x + y )