CÂU 1 :

A = \(\frac{3}{1^2.2^2}+\frac{5}{2^2+3^2}+\frac{7}{3^2+4^2}...+\frac{39}{19^2.20^2}\)

lâp tất cả các tỉ lê thức

a, Từ 4 số ; 3, 4, 15, 20

b, Từ 4 trong 5 số 2, 3, 5 , 6 , 9

Write a passage about your classmate's hobby ( 10 to 15 dòng )

EM CẦN GẤP Ạ !

1 : he ( have ) ................ dinner when his friend called

2 : Joan ( travel) ............ around the world

3 : we ( not begin) ........... to study for the test yet

4: don't get on a bus while it ( run ) ..............

5 : I ( invite ) ................... them to my birthday party yesterday , however , they ( not come ) ..............

6 : Look ! Somebody ( clean ) ........ the room

7 : my brother ( begin ) .................... looking for a job in January

bài 2: PUT THE VERBS IN BRACKETS INTO THE PAST SIMPLE OR THE PRESENT PERFECT

1. A:..........................( you / ever / meet) anyone famous ?

B: Yes ,last summer I .........................( sit ) next to Brad Pit on a plane to I.A

2: A : how long ago ...............................( you / start) painting?

B: ten years old . I ..................( recently/complete) a painting that the National Gallery......................(ask ) me to do a year ago

3 A: last night , i ...............( see) the lastest James Bond film

B: oh, i .................( already / see) it twice

4 A ; Do you know that Mrs Janet ..........................( work ) here for sixteen years ?

B : i thought she ............( start ) working here ten years ago

MONG MỌI NGƯỜI GIÚP ĐỠ!

EM CẦN NGAY TRONG TRƯA NAY Ạ