132 + 162 + 142 + 196 = 632

tick tớ nha

mk người nghệ an nè

Ta có : xy - x - y = 2

=> x( y - 1) - y + 1 = 3

=> x(y - 1) - (y - 1) = 3

=> (x - 1) ( y - 1) = 3

Ta có bảng :

Vậy có 4 cặp (x;y) ....

Cau 17: does / flow / the Nile River / into? / Which sea

=> Which sea does the Nile river flow into ?

Cau 18: I hope / will / the fun. / you / come and join

=> I hope you will come and join the fun.

Cau 19: like to come / Would you / for lunch / to my house / on Sunday?

=> Would you like to come to my house for lunch on Sunday ?

Cau 20: is / different from / your old one? / How / your new house

=> How is your new house different from your old one

Cau 21: My new school is different from the old one.

Cau 25: That is the most comfortable armchair I have.

Cau 28: David prefers pork to beef.

A on B at C at D for

Cau 29: Alex’s birthday is on the……….. of July.

A twelve B twelveth C twelfth D twelf

Cau 30: Lenka and Cristina ………to the cinema tonight. Would you like to come?

A shall go B will go C go D goes

Cau 31: lives with / his grandparents / Huy / Kim Ma street. /on

=> Huy lives with his grandparents on Kim /ma street.

Cau 32: the guitar / is learning / in his room. / to play / Steve

=> Steve is learning to play the guitar in his room.

Cau 33: a cold / and get / Let’s to go / drink. / the cafeteria

=> Let's go to the cafeteria and get a cold drink.

Cau 34: early in the morning / have to leave / the train. / They’ll / to

catch

=> They' ll have to leave early in the morning to catch the train.

Cau 35: There aren’t / movies on / at the moment. / any good

=> There aren't any good movies on at the moment.

Cau 36: What time will you leave? I will leave at 9.

Cau 37: What…an…….interesting movie!

Cau 38: Thanks for helping me. My ……….pleasure.

Cau 39: Does he……….travel by bus? – No. by bike.

Cau 40: What time is it? It is……eleven ten ( 11:10)

Cau 41: What time is it? It is………a quarter to five ………( 4: 45)

A half past five B fifteen past five C five forty five D a quarter to five

nhìu thế

1. Water (boil) boils at l00oc

2. Mr Hoa (teach) taught English in this school since she (leave) had left the university.

3. We (buy) will buy some souvenirs in Nha Trang next week.

4. I would like (tell) to tell you about my family.

5. We (begin) began to learn English there years ago.