Cho \(a+b-c\ne0\) và \(\frac{a}{2}=\frac{b}{3}=\frac{c}{4}\). Tìm giá trị của \(H=\frac{a+2b+c}{a+b-c}\).
A. \(H=\frac{3}{4}\)
B. \(H=\frac{4}{3}\)
C. \(H=12\)
D. \(H=\frac{1}{12}\)
(Nhớ giải rõ nhé. Cảm ơn nhiều​!)

1. He eats more fruit and vegetables but I want to be fitter and healthier.

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2. Maths is difficult, so I like to learn it.

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3. You may have an allergy because Be careful with what you eat and drink.

……………………………………………………………………………………………….

4. Tom has a temperature or Tom has a sore throat.

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5. You are catching flu and You don’t wash your hands very often.

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V. Supply the correct forms or tenes of the verbs in parentheses.

1.They often (go) _______________fishing at weekend

2.Last year, I ( visit)________________ Hue with my family .

3.We (visit) _______________Ha Long next summer holiday.

4.Nga ( not do) ________________ her homework yet.

5. We  ( learn)  ________________ for 3 years.

6. Do you like ( take) ________________ part in " Be a Buddy"?

7.I (do) _______________volunteer work last month

8.You ever (do) _______________ volunteer work?