.As we all know, the UK ________ four parts: England, Scotland, Wales and Northern Island.
from the top of the tower ,the south foot of the mountain is a sea of trees.
In the dream Peter saw himself by a fierce wolf and he woke suddenly with a start.
Mrs. White showed her students some old maps from the library.
Suddenly the idea came to me I might turn to Mr. Smith for help.
It is still unknown_______ caused the accident last Saturday.