Bộ 5 đề thi giữa kì 2 Tiếng Anh 12 Global Success có đáp án (Đề 1)

Today, there are more than five billion Internet users in the world, (21) is more than 60 percent of the global population

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Today, there are more than five billion Internet users in the world, (21) is more than 60 percent of the global population

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Giải thích

Chọn A