—You see, I’m poor in maths, you are not good at English, and... — That’s ____ we should help each other.
At first, the company had 15 notebook computers but only one – third used regularly. Now we have over 60 working all day long.
You are not in good health, I think. You could improve your by running every day.
The conference had been held to discuss the effects of tourism the wildlife in the area.
--- How long are you staying? --- I don’t know. .
-What made Susan so angry? -____ in the rain for a long time. Being kept waiting B. Being kept to wait C. Because of waiting D. She was kept waiting