This hat is too cold. Why not __________ buying a new one

Mrs. Green has been living ___ for two years. But she doesn’t feel ___ because she has many friends.

The factory produces half a million pairs of shoes every year, _______80% are sold abroad.

When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.

________unpleasant weather! Mysister and I have to stay at home instead of going camping.