你的句子是表明原因的独立主格结构.变成原因状语从句就是:As there was not enough time,we didn't finish the work.或者:There was not enough time,so we didn't finish the work.就是说,如果选D,句子里必须要有...
there not being enough time ,we did not finish the work. 此句子中 1. 没有连词,或起连接作用的词和短语。 2. 句中 是用 逗号 连接。 在英语中 逗号 不能连接句子。 所以我们可得 横线处要用非谓语形式。 如想选D 可说为 there was not enough time ,so we did not finish ...