Without the air to hold some of the sun’s heat,the earth at night　　　.
A．would be freezing coldB．will be freezing coldly
C．would be frozen coldD．can freeze coldly
A
句中介詞短語“Without the air to hold some of the sun’s heat”暗示條件，實際上相當(dāng)于一個明確的條件狀語從句If there were no air to hold....根據(jù)句意及句中時間狀語today可知句子是對現(xiàn)在情況的假設(shè)，所以該句應(yīng)用與現(xiàn)在事實相反的虛擬語氣。
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