有关于宾语从句的一个问题

问题描述:

有关于宾语从句的一个问题
9.The small children don't know _________.
A.what is their stockings in
B.what is in their stockings
C.where is their stockings in
D.what in their stockings

请阅:
答案为【B】,这句话为宾语从句,what is in their stockings作know的宾语,用陈述语序,即:主语——be动词——表语(主系表结构)