Tìm x,y thuộc Z biết: a) xy=-14 b)(x+2xy+1) c)(2x+1)(6y+4)=14 d)3x+4y-xy=16 mong mn giúp đỡ giúp e với e đang cần gấp lắm ạ ai nhanh e đánh giá 5 sao và trả lời hay nhất ạ

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Rewrite these sentences, using the verbs in passive form with "will/ can/ should/ must + be + past participle." 1. Some body will clean the room later. -> …………………………………………………………………………….. 2. You mustn't open this parcel until Christmas Day. -> …………………………………………………………………………….. 3. They can't make tea with cold water. -> …………………………………………………………………………….. 4. The students will hold a meeting before the Teacher's Day. -> …………………………………………………………………………….. 5. People can recycle tires to make pipes or floor coverings. -> …………………………………………………………………………….. 6. They should send applications before December. -> …………………………………………………………………………….. 7. The manage must sign the contract today. -> …………………………………………………………………………….. 8. They will build the new bridge by the end of the year. -> …………………………………………………………………………….. 9. We should use cloth bags instead of plastic bags. -> …………………………………………………………………………….. 10. We can use the garbage to make fertilizer. -> ……………………………………………………………………………..