【问】 Was it you that lost a watch yesterday?

请分析上面的句子。

【答】 强调句不仅可以采用肯定句形式，也可以采用疑问句、感叹句或从属分句的形式：

1. What was it that made you so happy?

使你这么高兴的到底是什么?

2. Who was it who interviewed you? (CGEL)

接见你的是谁呀?

3. He told me that it was because he was ill that they decided to return.

他告诉我正是因为他患病了他们才决定回来的。

4. What a picture it is you've drawn!

你画了一幅多么好的画啊!

请做下面的英语试题：

1. Whom____Mr. Smith saw in the college yesterday?

A. it was that B. was it that

C. is it that D. was it whom

2. ____that silver is not widely used as a conductor?

A. Why is B. Is it why

C. Why is it D. Why is that