Làm trước 3h chiều tick 5 sao + ctlhn

Cho mặt cầu (S): x2+y2+z2-2x-4y-4z=0. Mặt phẳng tiếp xúc với (S) tại điểm A(3; 4; 3) có phương trình là: A. 4x+4y-2z-17=0 B. 2x+2y+z-17=0 C. 2x+4y+z-17=0 D. x+y+z-17=0

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Làm trước 3h chiều tick 5 sao+ctlhn

IX. Put the correct form of the words 1. Don’t make a fire here. It’s very.............................. ( DANGER) 2. Air ...................................is abig problem in many cities in the world. ( POLLUTE) 3. There are a lot of ......................mountains in Viet Nam. ( BEAUTY ) 4. I’m Vietnamese. What’s your..............................? ( NATION) 5. This is the .................................pagoda in our country. ( OLD) X.Give the correct form of the verb in brackets: 1. Mrs Nga enjoys ......................................(listen) to music in her free time. 2. I ..................................... (visit) Hue last week. 3. I (not drink) …………………water last night. 4. Peter suggests …………….(cook) more rice. 5. Look! Linda ( swim)…………..in the river. 6. I must( finish )………………my task on time. 7. He always ( talk)……………..in the class. 8.Where………….. you ( spend) ……………your holiday last year? 9.We (not have)…………………… dinner now.

84. Give me …............ examples, please! A. a few B. a little C. few D. little 85. Is there …........... water in the glass? A. any B. some C. many D. lots of 86. Peter doesn't want …............ to do. A. something B. anything C. nothing D. everything 87. Can you speak French? - Yes,................... A. a few B. few C. a little D. little 88. Thank you very …............. for your help. A. many B. much C. a lot of D. little 89. He is very rich. He has ….......... money in the bank. A. a great deal of B. many C. a large number of D. few 90. She put too …......... sugar in the coffee. It became so sweet that I couldn't drink it. A. many B. much C. few D. little

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