~Viết lại câu có nghĩa tương tự: • Taking the necessary precautions, you shouldn’t have any health problems. -> Provided….…………………………………..………… ~Tìm và sửa lỗi sai: 1. During the bleak winter, food became too scared that starvation and famine were widespread. 2. While searching for gold, the Spanish found the Grand Canyon to be an impassably barrier. 3. Fertilizers are used primarily to enrich the soil and increasing yield. 4. Clare Boothe Luce wrote and productioned her first play while she was in high school.

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