My dream is ____ I will be a famous astronaut.
问题描述:
My dream is ____ I will be a famous astronaut.
A when | B where | C that 或者不填
最好能说下原因
答
that,is是系动词,所以后面所接的是表语,这是表语从句,你可以查查表语从句的相关资料.