将2句简单句改成带定语的复合句I received an invitation.It is from my best friend.

题目

将2句简单句改成带定语的复合句I received an invitation.It is from my best friend.

答案

I received an invatation which / that is from my best friend.
我收到了一份来自我最好的朋友的邀请.
被修饰词是物,所以,用which 或 that