It was early in the morning____the train accident took place.A since B when C where D that

熱心網(wǎng)友

D that （這是個(gè)強(qiáng)調(diào)句）強(qiáng)調(diào)句型的結(jié)構(gòu)：It is / was + 被強(qiáng)調(diào)部分 + that / who + 原句其余部分強(qiáng)調(diào)句中，被強(qiáng)調(diào)部分通常是原句中的主語(yǔ)、賓語(yǔ)、表語(yǔ)、時(shí)間狀語(yǔ)或地點(diǎn)狀語(yǔ)。被強(qiáng)調(diào)部分指人時(shí)，其引導(dǎo)詞用that或who，其他情況通常用that（間或用which）。將原句還原為正常結(jié)構(gòu)的句子：The train accident took place early in the morning.

熱心網(wǎng)友

這句不是強(qiáng)調(diào)句，應(yīng)是WHEN

熱心網(wǎng)友

that , it was ...that , 強(qiáng)調(diào)句。強(qiáng)調(diào)時(shí)間狀語(yǔ)was early in the morning。

熱心網(wǎng)友

D that 強(qiáng)調(diào)句.

熱心網(wǎng)友

B. when