—I’m afraid you have a cold. You’d better go to see a doctor.—_______
________ plastic bags we use, ________ it will be to the environment.
The little boy was made _____ again after his mother told him some jokes.
-_____ beautiful flowers! Who sent them to you? --Ah, it’s a secret.
-The flight to London was because of the heavy snow.
-Little Tom home for three days. His parents are very worried.