Polly’s mother was anxious about ______ she could get home safely in ______ foggy a day.
A．whether; thatB．if; thatC．whether; suchD．if; so
A
句意：波利的母親非常擔(dān)憂她否能夠安全到家在濃霧的一天。這是一個(gè)賓語從句，做介詞的賓語，連詞不用if，第二空: that 為副詞，那么，相當(dāng)于so,所以選A。
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