He has a keen awareness of his own failures.

They are using English as a common language.

This road has a lot of traffic, so caution is necessary.

You need to keep left on this road.

He bought a new schoolbag.

He is working as an interpreter.

I commute to work by train every day.

We celebrated the opening of the new railway line.

This train goes direct to Tokyo Station.

I took an analgesic because I had a severe headache.