Sắp xếp câu

a. the / it / in / fall / is / cool / often

b. do / it /cold / what / you /do often /when

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1+2+3+...+99+100

=(1+100)x50

=101x50

=5050

2+4+6+8+10+...+18

=(2+18):2 x9

=90

1+2+3+4+...+200

=(1+200)x 100

=201 x100

=20100

1. Đặt câu cho từ in đậm

Mr hung has a big farm near Hanoi .

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1. Viết lại câu sao cho nghĩa không đổi

a . It is not good to throw water at others at Tet in Vietnam .

➜ You ..................................................................................

b . Does your neighbourhood have a library ?

➜ Is there .......................................................

2 . Sắp xếp câu

a . wish / I / a joyful / year / you .

b . I'm / have / sure / will / we / funs / lots of .

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In Viet Nam , Tet is a national and family (1)......... It is an occasion for every Vietnamese to (2)....... a good time while thinking about the last year and the next year. At Tet, spring (3)........ are organized ; streets and public buildings are (4)....... decorated and almost all shops are (5)....... with people shopping for Tet . At home, everything is tidied ; special food is (6)..... offerings of foods , fresh water and flowers are made on the family altar with burning joss-sticks scenting the air. First-footing is made when the first (7) .......... comes, and children are to be given (8)....... money wrapped in a red tiny envelope . Tet is aslo a time for peace and (9)....... During Tet , children often behave well ; and friends, relatives and neighbours give each other their best (10)....... for the new year. ( Từ cần điền : wishes , crowded , prepared , visitor , brightly , love , holiday , comfortably , fairs , enjoy , beautiful , lucky )

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