1. "Do these clothes belong to you " said Liz to me (if)
Liz asked me if these clothes belonged to me
Đây là cấu trúc câu gián tiếp, để hiểu rõ hơn, bạn xem TẠI ĐÂY
2. We have never been to Ba's native village before (time)
This is the first time we have been to Ba's native village
Cấu trúc: This is the first time + (that) + S + have/has + Verb (PP)