Mn giải trước 8h giúp mình ạ,tks Mình đang cần gấpppp

Em hãy viết thư. Gửi cho một người bạn quốc tế theo gợi ý sau

You must put all chemicals and drugs in locked cupboards. Children may drink or eat these things because they look like soft drink or candy. You must not let children play in the kitchen. The kitchen is a dangerous place. You have to make sure children do not play with matches. Each year, fire destroys homes and injure children because someone plays with matches. Remember, it only takes one match to cause a fire. You must cover electrical sockets so that children do not try to put anything into them. Electricity can kill. You must to keep all dangerous objects out of children’s reach. These include knives, and small objects such as beads. 1/ Is the kitchen a dangerous place?  …………………………………………………………………………………….. 2/ Why must we cover electrical sockets? ……………………………………………………………………………………… 3/ What do the drugs look like ?  …………………………………………………………………………………….. 4/ Why mustn’t children play with matches ?  …………………………………………………………………………………….. 5/ What destroys homes and injures children every year ?  …………………………………………………………………………………….. giúp mk vs ạ

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làm 1,2 nhanh lám ...................

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Giải phương trình: $cos(2x+\dfrac{\pi}{6})+cosx=0$ (giải theo công thức biến đổi tổng thành tích)