Question

2. Last summer holiday,I went back to my home town,only to find the neighbours and the houses        were gone. (familiar)

去年暑假我回到家乡，却发现过去我所熟悉的邻居还有房屋都已不见。

Answer 1

2. that I used to be familiar with/that used to be familiar to me考査定语从句以及familiar的用法。当先行词既有人(neighbours) 又有物(houses) 时，应用that引导定语从句；sth. is familiar to sb.，sb. is familiar with sth.是固定搭配。