字彙題：請在題組選項中，選擇一個最適合的答案，以完成該句子，無須考慮詞類變化。【題組】31. Dozens of people were _____ on the rooftop because of
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字彙題：請在題組選項中，選擇一個最適合的答案，以完成該句子，無須考慮詞類變化。 【題組】31. Dozens of people were _____ on the rooftop because of the big fire. (A)optimistic (B) moral (C) trap (D) infect (E) expand