______in the heart of Toronto is the Canadian National Tower, ______ is often called the CN Tower for short.
As teenagers, it is not until we are able to face difficulties bravely we are mature enough.
a large salary rise already, Sarah is thinking of buying a new apartment.
Printing passengers’ names and ID numbers on tickets will make harder to protect their private information.
The boys were about to go out to play football suddenly it began to rain.
I travelled in Mountain Tai, I was deeply impressed with its beautiful scenery.