Tom’s mother is angry________him because he failed in the exam.
---We are flying to France on vacation. We will arrive _________ Paris _________ the morning of May 20th.---Have a good time.
You’d better stay at home. It’s raining_________ .
People should _________ down trees in order to protect the environment.
He has read_________ many books _________ he knows a lot about the world.
John with his parents _________ been in Australia for about two years.