Tiện vì có thể dễ mang đi, giá thành rẻ, có thể đúc nhiều khuôn dạng phù hợp nhiều chức năng.

Không lợi vì sản xuất nhựa tạo lượng khí thải nhiều, nhựa dùng 1 lần bỏ gây ô nhiễm môi trường nặng nề.

mk cảm ơn bn tuy mk có câu trả lời rùi =>>>>>>>>

Chào em, em tham khảo nhé!

1: The paparazzi had followed Princess Diana.   

=> Princess Diana had been followed by the paparazzi.

2: Celebrities often accuse the paparazzi of putting lives in danger.        

=> The paparazzi is often accused by celebrities of putting lives in danger.

3: The police arrested the photographer. 

=>The photographer was arrested by the police.

4: The paparazzi have followed him everywhere.

=> He has been followed by the paparazzi everywhere.

5: Michael Douglas did not give the guests the location of the wedding.

=>The guests were not given the location of the wedding by Michael Douglas.

6: The paparazzi do not pay celebrities.

=> Celebrities are not paid by the paparazzi.

Chúc em học tốt và có những trải nghiệm tuyệt vời tại hoc24.vn!

III> Rewrite using the correct passive form.

1: The paparazzi had followed Princess Diana.   => Princess Diana had been followed by the paparazzi

2: Celebrities often accuse the paparazzi of putting lives in danger.        

=> The paparazzi are often accused of putting lives in danger.

3: The police arrested the photographer. 

=>The photographer was arrested by the police.

4: The paparazzi have followed him everywhere.

=> He has been followed everywhere by the paparazzi.

5: Michael Douglas did not give the guests the location of the wedding.

=>The guests weren't given the location of the wedding by Michael Douglas.

6: The paparazzi do not pay celebrities.

=> Celebrities aren't paid by the paparazzi.

gửi lắm thế bạn. 

mk trl r nha >3

I> Write sentences using the second or third conditional.

1: I would travel to India if I ...had.... (have) enough money.

2: If the student had studied at weekends , he ..WOULDN'T HAVE FAILED...... (not fail) his exams.

3: If you ..DIDN'T HAVE TO STUDY... (not have to study) , we could go to the shops.

4: If I had known (know) then what I know now, I ...WOULDN'T HAVE HAD.... (not have) so many problems.

5: If you .....WERE NOT ALREADY BUSY...... (not already busy) , would you play?

7: ......WOULDN'T YOU GET BORED...... (not/would you get bored) if you played computer games all night

8: If he (have) HAD HAD the time , he would have learnt to play the guitar.

9: I....WOULD HAVE BEEN ABLE TO.... (be able to) make more foreign friends if I hadn't given up English.

10: If we ....HADN'T SAVED.... (not save) money, we wouldn't have bought a present for Mum.

II> Write wishes using the prompts 

1: He wanted to talk to her - if only/ he/ not be/ so shy

=>IF ONLY HE HADN'T BEEN SO SHY

2:Sarah is my best friend - I wish/ I / see/ her/ more often

=>I WISH I SAW HER MORE OFTEN

3: I'd love to be a pop star. - I wish/I/can/sing

=>I WISH I COULD SING

4:We wanted to send her a letter. - If only we/ know/ her address

=>IF ONLY WE HAD KNOWN HER ADDRESS

5:I feel so tired. - I wish / I / not go out / yesterday

=>I WISH I HADN'T GONE OUT YESTERDAY

III> Rewrite using the correct passive form.

1: The paparazzi had followed Princess Diana.   => Princess Diana .......HAD BEEN FOLLOWED BY THE PAPARAZZI.............

2: Celebrities often accuse the paparazzi of putting lives in danger.        

=> The paparazzi ....IS OFTEN ACCUSED OF PUTTIN G LIVES IN DANGER.............

3: The police arrested the photographer. 

=>The photographer ...WAS ARRESTED BY THE POLICE.........

4: The paparazzi have followed him everywhere.

=> He .......HAS BEEN FOLLOWED EVERYWHERE BY THE PAPARAZZI....................

5: Michael Douglas did not give the guests the location of the wedding.

=>The guests ...WEREN'T GIVE THE LOCATION OF THE WEDDING BY MICHAEL DOUGLAS.................

6: The paparazzi do not pay celebrities.

=> Celebrities ......AREN'T PAID BY THE PAPARAZZI....................

IV> Write sentences using the correct form of the impersonal passive.

1: They say that most types of plastic can be recycled.

=> It............IS SAID THAT most types of plastic can be recycled.................................

2: She said that the students like being assigned too much homework

=> The students ...ARE SAID TO like being assigned too much homework................

3: The doctor explained that his medicine must not be given to small chirldren

=> It......WAS EXPLAINED that his medicine must not be given to small chirldren...............................

4: People say that bullying in schools ought to be stopped

=> Bullying ....IN SCHOOLS IS SAID to be stopped ............

5: Poloticians know that something must be done to help the environment.

=>It .........IS KNOWN THAT STH must be done to help the environment.

6: Everybody knows that nurses deserve more money.

=>Nurses .....ARE KNOWN TO DESERVE MORE MONEY.....................

Em chia nhỏ từng phần để mọi người hỗ trợ sớm nhất nhé !!

I> Write sentences using the second or third conditional.

1: I would travel to India if I had (have) enough money.

2: If the student had studied at weekends , he wouldn't have failed (not fail) his exams.

3: If you didn't have to study (not have to study) , we could go to the shops.

4: If I had known (know) then what I know now, I wouldn't have (not have) so many problems.

5: If you weren't already busy (not already busy) , would you play?

7: Wouldn't you get bored (not/would you get bored) if you played computer games all night ?

8: If he had had(have) the time , he would have learnt to play the guitar.

9: I would have been able to (be able to) make more foreign friends if I hadn't given up English.

10: If we hadn't saved (not save) money, we wouldn't have bought a present for Mum.

II> Write wishes using the prompts 

1: He wanted to talk to her - if only/ he/ not be/ so shy

=> If only he hadn't been so shy.

2:Sarah is my best friend - I wish/ I / see/ her/ more often

=> I wish I saw her more often.

3: I'd love to be a pop star. - I wish/I/can/sing

=> I wish I could sing.

4:We wanted to send her a letter. - If only we/ know/ her address

=> If only we knew her address.

5:I feel so tired. - I wish / I / not go out / yesterday

=> I wish I hadn't gone out yesterday.

III> Rewrite using the correct passive form.

1: The paparazzi had followed Princess Diana.   

=> Princess Diana had been followed by the paparazzi.

2: Celebrities often accuse the paparazzi of putting lives in danger.        

=> The paparazzi are often accused of putting lives in danger by celebrities.

3: The police arrested the photographer. 

=>The photographer was arrested by the police.

4: The paparazzi have followed him everywhere.

=> He has been followed everywhere by the paparazzi.

5: Michael Douglas did not give the guests the location of the wedding.

=>The guests weren't given the location of the wedding by Michael Douglas.

6: The paparazzi do not pay celebrities.

=> Celebrities aren't paid by the paparazzi.

IV> Write sentences using the correct form of the impersonal passive.

1: They say that most types of plastic can be recycled.

=> It is said that most types of plastic can be recycled.

2: She said that the students like being assigned too much homework

=> The students were said to like being assigned too much homework.

3: The doctor explained that his medicine must not be given to small chirldren

=> It was explained by the doctor that his medicine must not be given to small chirldren.

4: People say that bullying in schools ought to be stopped

=> Bullying in schools is said to ought to be stopped. (chắc thế :>)

5: Poloticians know that something must be done to help the environment.

=>It is known that something must be done to help the environment.

6: Everybody knows that nurses deserve more money.

=>Nurses are known to deserve more money.

+ Môi trường ngày càng bị ô nhiễm.

+ Tác động tiêu cực tới tài nguyên thiên nhiên.

+ Ô nhiễm môi truờng

+ Ùn tắc giao thông

+ Gây nên các khu nhà ổ chuột

+ Nghèo đói, thất nghiệp, bệnh tật hoành hành

+ Trẻ em thất học, trình độ học vấn thấp

Học Tốt nha

Tham khảo:

Vấn đề cần quan tâm rất lớn môi trường phải giải quyết ngay ở đới lạnh, đới nóng, đới ôn hòa là gì?Hiện nay các vấn đề cần quan tâm rất lớn môi trường phải giải quyết ngay ở đới lạnh, đới nóng, đới ôn hòa là gì ? (loga.vn)

x chia hết cho 64,x chia hết cho 48 =>x thuộc BC(64,48)        (x thuộc N*,200<x<500)

mk bân rồi tự làm tiếp nha

theo đề ta có : x chia hết cho 48 và 64 ; 200<x<500

suy ra : x thuộc BC (48;64)

trước hết ta tìm : BCNN(48;64)

48=2 mũ 4 nhân 3

64=2 mũ 6

BCNN(48;64)=2 mũ 6 nhân 3=192

BC(48;64)=B(192)={0;192;384;576;...}

mà 200<x<500 nên x=384

(bạn đổi ra kí hiệu mấy chỗ :chia hết cho,suy ra,thuộc,mũ,nhân .giúp mk nhé do máy tính mk bấm ko đc)

chúc bạn học giỏi ! kiểm tra thật tốt nhé!

X= 384 vì 384 vừa chia hết cho 64 và 48 và X vùa thỏa mãn điều kiện 200<x<500