Change the following sentences into the Passive :

1, Did they finish their work yesterday .

2, You must report the accident to the policeman.

3, All students took the final examination .

4, You ought to show home how to use this computer.

5, Naturally , ther speak English very well .

Từ nguồn điện có hiệu điện thế 238,9 V cung cấp 1 công suất 1290,06 W . Điện năng được truyền đến nơi tieu thụ bằng đg dây có điện trở tổng cộng 3,5 Ω . Tính công hao phí trên đg dây . Tính hiệu điện thế và công suất nơi tiêu thụ .

Cho 16l hỗn hợp Cacbon oxit CO và Cacbon đioxit CO₂ Qua dung dịch natri hidroxit NaOH dư thu được khí A . Đốt cháy hoàn toàn khí A cần tìm cần 4,48l oxi

a) viết ptpu hh xảy ra

b Xác định % thể tích mỗi khi hỗn hợp đâuù

Choose the one option a , b, c , d that best completes the passage .

Television first (1) _____ some fifty years ago in the 1950s. Since then , it has been one of the most popular sources of (2) _____ for both the old and the young . Television can actually satisy almost all kinds of taste . It (3) ____ cartoons for children , world news , music and many other programs . If someone os interested in sports (4) ____ , he can tune in to a sports channel . There he can enjoy a (5)____ broadcast of an intertainal football match . Television is also a very useful way for companies to (6) ___ their products .

It's not (7) ____ hard for us to see why there is a TV set in almost every home today . And engineers are developing interactive TV which allows to communicate (8) ____ viewers ang producers .

1, What about Sally? She is done her best these days, _____ ?

A isn't she B hasn't she. C isn't Sally. D hasn't Sally

2, You never say what you are thinking ______ ?

A are you B aren't you. C don't you D do you

3,This is the last bus , _____?

A is this B isn't this C is it. D isn't it

4, I think he's American, _____?

A do I. B don't I. C isn't he. D is he

5, Do you enjoy _____ other countries?

A visit B to visit. C visiting. D visited

6, I think you shouldn't spend too much time _____ the Internet

A use. B to use. C using. D uses

7, Please remember _____ your hand if you have a question

A to raise. B raising. C being raised. D to be raised

8, We advised Virginia _____ TV all time

A don't watch. B not watching. C not to watch. D not watch

1, We have lived in HN _____ 4 years .

A in B since C for D at

2, My father _____ teaching in a small village 10 years ago

A starts B started C has started D is starting

3, My mother started _____ in a small village 10 years ago

A teaching B teach C taught D teaches

Chứng minh 3 đường thẳng sau đồng quy: y = x + 2 ; y = 2x +1 ; y = 3x

Chuyển câu sang gián tiếp

1, Tom asked Mary " Did you call me last night? "

2, Her father said to her " You can go to the movie theater with your friends now? "

Cho \(y=\left(\sqrt{m-1}-6\right)x+3\) Tìm m để hàm số là hàm số bậc nhất và nghịch biến

"What time did you come home last night , Mark ? " said Tom