--Mr.Li,I found a watch on the playground.
问题描述：
--Mr.Li,I found a watch on the playground.
--Mr.Li,I found a watch on
the playground.--You
should try to find out ______
__.
--Mr.Li,I found a watch on the
playground.
--You should try to find out ________.
A.whose is the watch B.who is the
owner of the watch
B句为什么是陈述语序?
答
who 是主语,is the owner of the watch 是系表结构（谓语）,没倒装,所以说是陈述句语序.
这里作find out 的宾语,是宾语从句,所以要选陈述句语序的