The old town has narrow streets and small houses ___ are built close to each other.
. Nowadays people attach importance _______ the children’s pre-school education.
Mike wasn’t at home yesterday. He ______to give us a lecture.
A new bridge ______ across the river and it is expected to open next year.
We appreciate ______ us know the change of the date for the meeting.
This is a picture of Dr. Yuan, a scientist ____ is well known in our country.