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【題目】I choose to shop __________ because it saves time and effort.

A. on the air B. on the Internet

C. on TV D. in magazines

【答案】B

【解析】句意:我選擇網上購物，因為可以節(jié)省時間和精力。on the air在廣播中，直播地；on TV通過電視收看節(jié)目；on the Internet在網絡上；in magazines在雜志里。依據句意理解，選項B符合題意。

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