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328911281371498
2 năm trước
Cho P=-6xy+x+5y và Q=-x-5y Tính P+Q
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II.Use TOO to combine each pair of these sentences : 1.It’s not warm today. We can’t go outside. ​​​​​​​​​ 2.The coat isn’t warm. I can’t wear it in winter. ​​​​​​​​​ 3.Tom doesn’t have money. He can’t pay his bills. ​​​​​​​​ 4.The ice is very thick. People can dance on it. ​​​​​​​​​ 5.The ladder is rather long. We can use it. ​​​​​​​​​ 6.The shirt is big. He can wear it. ​​​​​​​​​​ 7.That bookcase is large. It can hold 150 books. ​​​​​​​​ 8.The box is light. She can lift it. ​​​​​​​​​​ 9.We couldn’t eat the food. It was very hot. ​​​​​​​​​ 10.A picnic would be nice. But it’s wet. ​​​​​​​​​​ 11.The weather is very rough. We can’t swim in it. ​​​​​​​​​​ 12.A taxi would have been best. But I didn’t have enough money. ​​​​​​​​​​ 13.I didn’t have time. I couldn’t eat breakfast this morning. ​​​​​​​​​​​ 14.The room is not wide. We can’t hold a party in this room.

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