【題目】WeChat Pay makes our lives confident. ______ we want to pay for something, we just need to scan a QR code (掃描二維碼).

A. WhenB. AfterC. UnlessD. Until

【答案】A

【解析】

A 本題考查連詞辨析。句意:微信支付使我們的生活方便。當我們想為某物付錢時,我們只需要掃描二維碼。A. When……時候; B. After……以后; C. Unless除非; D. Until……為止。綜合句意可知,掃描二維碼指的是當我們付錢時的動作,用關系副詞when。故鄉(xiāng)A

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