Some people are taking photos, ________ are riding elephants.
We had a hard time ____________ the basketball match, but finally we made it.
--- ____________ does your father go to work? --- Five times a week.
He plays ____________ piano every day to become the champion of his country.
It is impossible___________ so much work in an hour. A. finish B. to finish C. finishing
My family went on a _________ trip last month. A. two weeks B. two-week C. two-weeks