It took a long time for the connection between body temperature and illness ________.

Amy, can we give away these soft toys We ________them for many years.—Mom, but I want to keep the bear.

He has made _______ progress this term than before.

They are walking down the way _______ there are many trees on ______side.

Would you mind opening the window It’s too hot in the room.– . I’ll do it right away.