摘要:An army spokesman stressed that all the soldiers had been ordered clear warnings before firing any shots. A. to issue B. being issued C. to have issued D. to be issued 解析:本句中不定式作主语补足语.order 后应接不定式.即order sb to do sth ,因此B被排除.又因为issue clear warnings的主语是all the soldiers,.也就是说all the soldiers是issue的施动者.所以issue要用主动形式.D也被排除.而且句子也没有强调动作对现在造成的影响.不必用完成时态. (二)不定式的副词性功能

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