Mr. Zhang, our math teacher, is strict with students and serious in teaching work, so he ____.

You are waiting at a wrong place. It is at the hotel ____ the coach picks up tourists.

I enjoy going _____, but I don’t want ____today.

56. He said under his breath that he wouldkeep the secret. The underlined part means _____.

The government has made laws to protect animals，so the number of the endangered animals ________ in recent years.