. It has always been the _____ of our firm to encourage workers to take part in social activities.
—I’m planning to go to Kingdom of Cambodia this summer vacation. I think the trip will be exciting.—____, as it’s the rainy season then.
1 think we'd better keep to the subject, ______we'll waste our time.
No one can exactly tell us what .
---Look at the glasses on the desk.Are they David’s?---They belong to him.I saw him go out with glasses just now.
of our classmates are good at basketball.