4. Was it in this palace           the last emperor died ?

A. that       B. in which          C. in where            D. which

〖答案与简析〗选A。测试it 用在强调结构中，为了强调句子的某一成分（通常是主语、宾语或状语），常用强调It is (was) + 被强调成分 + that(或who）…。被强调部分指人时用 that 或 who ，在其它情况下（包括强调时间或地点状语）用that 。又如：

1）Was it during the Second World War            he died ? (MET 88）

     A. that             B. which        C. in which            D. then

2) It was not            she took off her dark glasses            I realized  she was a famous film star .

     A. when ; that  B. Until ; that              C. until ; when       D.  when ; then

答案 1) A  2) B。