sắp xếp câu hoàn chỉnh :

1. morning / you / get / up / did / this / early ?

2. did/ cold / you / have / a / when / recently ?

3. prevent / you / how / a / can / cold / have ?

4. every / exercise / do / morning / you / do ?

sắp xếp câu hoàn chỉnh :

1. eat / this / what / did / you/ time / morning / breakfast ?

2. now / feeling / you / how / are ?

3. wrote / letter / boy / the / night / last / the .

4. want / more / I / have / tea / some / to .

Chuyển câu nghĩa ko đổi :

1. What time does Mai go to work ?

-> When ...................

2. How high is the Mount E verest ?

-> What ....................

3. How much is a bottle of water ?

-> What ....................

Thực hiện phép tính một cách hợp lý :

a) \(\dfrac{-12}{7}\) . \(\dfrac{4}{35}\) + \(\dfrac{12}{7}\) . \(\dfrac{-31}{35}\) - \(\dfrac{2}{7}\)

b) 1 + 2 - 3 - 4 + 5 + 6 - 7 - 8 + ... + 97 + 98 - 99 - 100.

c) A = 157 . ( - 37 ) - ( 41 . 53 - 37 . 157 ) + 51 . 53

d) B = \(\left(\dfrac{1}{11}+\dfrac{1}{21}+\dfrac{1}{31}+\dfrac{1}{41}+\dfrac{1}{51}\right)\) \(\left(\dfrac{-41}{123}+\dfrac{31}{-186}-\dfrac{-51}{102}\right)\)

A=25753901