We are all aware _________ the many threats _________ the environment and we need to take action to prevent us from the bad consequences

Mr. Smith is as busy as a bee.—If he is not working in his office， he _________ to his office.

He a director since he graduated from university in 1962.

Where is your brother, Leo— He is in Hainan on vacation. He for two weeks.

In England, people use Mr, Mrs or Ms with their first name.