1.答案: It ; was ;that.
解析:此句话包含了强调句型:it is...that...的用法,强调的是句中地点状语in the park.因句子Tom lost his watch in the park.时态是一般过去时,所以要用it was...that...。
2.答案:The ;reason;why。
解析:此句话运用的是固定句型:The reason why(从句)/for (短语)... is /was that ...。结合句子中(he was late)及that这些信息点,可以判断所填内容应该是:The ;reason;why。
3.答案:That was because
解析:He was late that morning. That was because he had missed the first bus.(先说结果he was late ,再说原因He had missed the first bus,用That was because...)
如果先说原因,后说结果,这句话可以这样说:He had missed the first bus.That was why he was late that morning.
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