The children loved their day trip, and they enjoyed the horse ride ___.
.I have bought two ball pens, _______ writes well.
If you are _______ about Australian cities, just read the book by Dr. Johnson, which introduces them in detail.
This suggestion is well worthy ________.
The Tower of London is _______ the Church Tower.
.Dalian is______ most beautiful coastal city and I believe I will come for ______ second visit.