1200 câu Trắc nghiệm tổng hợp Tiếng anh 10 - iLearn Smart World - Phần 4: Writing (có đáp án)
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My elder sister was typing her report. At the same time, my younger brother was surfing the Internet. (WHILE) → .............................

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Combine the sentences using the word given in brackets.

My elder sister was typing her report. At the same time, my younger brother was surfing the Internet. (WHILE)

→ .............................

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Giải thích

Peter has not been seen since the day of the party./Peter hasn't been seen since the day of the party.