Một người kéo một hòm gỗ trượt trên sàn nhà bằng 1 dây hợp với phương ngang góc 600. Lực tác dụng lên dây bằng 150 N. Công của lực đó khi hòm trượt 20 m bằng bao nhiêu?

1. Alexander G.Bell was one of the greatest _______. He invented the telephone. (INVENT) 2. The next stage in the _______ of television is interactive TV. (DEVELOP)

7. The (tire) ___________ horse was drinking water. 8. I like eating (boil) ______________ eggs. 9. Mr. Smith seems quite (satisfy) _____________ with his new job. 10. Mary appeared with a (please) ______________ smile. VI. Put question for the underlined part of each sentence: 1. It is 10 kilometers from here to ACB bank. ____________________________________ 2. I have known Marie for nine years. ________________________________________________ 3. Yes, they used to be friends at the university. ________________________________________ 4. Sarah left two hours ago. _____________________________________________ 5. She is watching Tom and Jerry. _____________________________________ 6. It is an action film. ______________________________________________ 7. She likes watching comedy. _______________________________________ 8. It starts Lee Min Hoo and Jun Ji Huyn. _________________________________ 9. I felt terrified before my last Maths test. _________________________________________ 10. She felt entertained when she watched a gripping film. ____________________________ Choose the best answer: 1. _____________this movie is entertaining, not many people like it. A. Because B. Although C. Because of D. Despite 2. _____________getting up early, I still missed the bus. A. Despite of B. Although C. In spite of D. Because of 3. I decided to quit this job_____________the low salary. A. because of B. despite C. because D. although 4. They canceled the match_____________it rained heavily. A. because of B. because C. although D. in spite of 5. _____________the difficulty, they tried to finish all their tasks. A. because of B. because C. although D. in spite of 6. Are you a__________runner? No. I run___________. A. fast/ slow B. fastly/ slowly C. fast/ slowly D. fast/ slow 7. How do you think about my new book? – I find it___________. A. excited B. excite C. excitingly D. exciting 8. This is a____________movie. It makes me laugh a lot. A. hilarious B. boring C. disappointing D. frightening 9. This movie is about the war between the planets in the space. It is a___________movie. A. romantic B. comedy C. documentary D. sci-fi 10. Please get____________the bus. We have finished our journey. A. on B. of C. off D. up Rewrite sentences: 1. Although I have a lot of money, I am not very satistied. DESPITE ______________________________________________________________________________ 2. Although it rained, they still go fishing. IN SPITE OF ______________________________________________________________________________ 3. Although she works hard, she doesn’t get good results. DESPITE ______________________________________________________________________________ 4. Although he is a singer, he sings badly. IN SPITE OF ______________________________________________________________________________ 5. Although the exercise is difficult, she can do it easily. DESPITE ______________________________________________________________________________ Cloze test: There are many (1)_______of films: romance, comedy, science fiction, documentary, horror, action… My favourite is romantic films, for (2)_______, Titanic, The Notebook, Notting Hill… They are meaningful about life and love. Sometimes they are (3)________and make me cry. I am also interested (4)________docmentaries. They give me interesting knowledge. 1. A. types B. movies C. forms D. watches 2. A. such as B. character C. example D. actor 3. A. funny B. gripping C. strange D. moving 4. A. on B. in C. of D. with

Cho mk xin cách học nốt nhạc trong thời gian nghỉ dịch nhé

Giúp em với em đang gấp ạ, e cảm ơn nhiều!!

một hình tam giác có đáy 14,5m,chiều cao 1,2m.tính diện tích hình tam giác đó.

Cho hàm số y = (m + 1)x + m -1 . (m là tham số) và đường thẳng y= 3x+2. Giá trị nào của m thì đường thẳng (d 1 ) và (d 2 ) cắt nhau tại một điểm trên trục hoành. A. m=-5 . B. m=5 . C. m=4 . D. m=-4 .

Mọi người ơi giúp mình mấy bài này với nhé, thanks

$\frac{x}{x-1}$ + $\frac{x-1}{x}$ = 2 $\frac{2(x+7)}{x+1}$ - $\frac{x+11}{x^2-1}$ = 3 - $\frac{x-1}{x+1}$

Giải hệ phương trình: x-2y=1 và 2x+3y=5