VI. Choose the correct answers to complete the passage.

Are you tired (37)_______ the colour or pattern of your walls? In a smart home, you won’t have to (38)______ them. The walls will actually be digital screens, like computer or TV screens.

A computer network will link these walls with (39)________ else in your house. Called “ambient intelligence,” this computer “brain” will control your entire house. It will also adapt to your (40)________. Your house will learn about your likes and dislikes. It will then use that knowledge to control the environment. For example, it will set the heat in the house to your (41)________ temperature. It will turn on the shower at the right temperature. It will also darken the windows at night and lighten them when it’s (42)________ to wake up.

37.a. with b. of c. in d. by

38.a. build b. cover c. pull d. repaint

39.a. thing b. everything c. anything d. nothing

40.a. prefering b. preferable c. preferably d. preferences

41.a. favourite b. terrible c. high d. clearly

42.a. occasion b. way c. time d. order

.Would you like _______________ (live) on the Moon?

_ (you/ ever live) in a smart house?

XI. Complete the sentence with the negative form of the present continuous. Use
short forms. ( Viết động từ trong ngoặc ở dạng phủ định của hiện tại tiếp diễn, sử
dụng dạng viết tắt)
35. They ______aren’t helping__________ (help) the teacher right now.
36. She ________________ (stay) in a hotel.
37. I ________________ (travel) a lot these days.
38. We ________________ (study) science at present.
39. The children ________________ (play) football in the playground.
40. Bob ________________ (watch) the news on TV.
41. My parents ________________ (talk) to the teacher at the moment.
42. The sun ________________ (shine) today

XI. Complete the sentence with the negative form of the present continuous. Use
short forms. ( Viết động từ trong ngoặc ở dạng phủ định của hiện tại tiếp diễn, sử
dụng dạng viết tắt)
35. They ______aren’t helping__________ (help) the teacher right now.
36. She ________________ (stay) in a hotel.
37. I ________________ (travel) a lot these days.
38. We ________________ (study) science at present.
39. The children ________________ (play) football in the playground.
40. Bob ________________ (watch) the news on TV.
41. My parents ________________ (talk) to the teacher at the moment.
42. The sun ________________ (shine) today.

\(\frac{A}{4}=\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}+...+\frac{1}{99x100}\)

\(\frac{A}{4}=\frac{2-1}{1x2}+\frac{3-2}{2x3}+\frac{4-3}{3x4}+...+\frac{100-99}{99x100}\)

\(\frac{A}{4}=1-\frac{1}{2}+\frac{1}{2}-\frac{1}{3}+\frac{1}{3}-\frac{1}{4}+...+\frac{1}{99}-\frac{1}{100}\)

\(\frac{A}{4}=1-\frac{1}{100}=\frac{99}{100}=>A=\frac{4x99}{100}=\frac{99}{25}\)

do la con nguoi

h cho minh nhe

14 chia hết cho (2x+3)

Có 14 chia hết cho 2x+3 => 2x+3 thuộc Ư(14)

Ư(14)= {1;2;7;14}

                                 2x=4

                                   x=2 (thỏa mãn)

Vậy giá trị x cần tìm là x=2

con người