--- __________is it from your school to the museum?---About half an hour by bus.
Tom is __________ clever __________ he can answer all the questions.
________ 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 wasbecause of the heavy snow.