(w )if i don't know angone?括号里应该填什么?

(w )if i don't know angone?括号里应该填什么?
(w )if i don't know angone?
括号里应该填什么?

(w )if i don't know angone?括号里应该填什么?
What
what if 意思是“如果...怎么办”
整个句子意思是“如果我一个人都不认识怎么办”

What

What if…？该句型表示要是…又怎么样呢