这是改强调句.
1.It was between 1830and 1835 that the modern newspaper was born.
2.It was him who Mr smith saw in the college yesterday.
3.It was bacause he missed the bus that He didn't go to work on time.
4.It was at the gate that He told me the news.
5.It was only when i reread them recently that I began to appreciate the beauty of his poems.