Was it last Friday _____you met him?A.that B.on which C.which D.when 为什么选A,不能选BCD

问题描述:

Was it last Friday _____you met him?A.that B.on which C.which D.when 为什么选A,不能选BCD

强调句,改成陈述句,去掉It was…that后仍是完整的句子.