a. In Vietnam, students go to school every day, ____________ Sundays. b. My father and I like __________ bicycles around the city on the weekends. It’s a relaxing recreation I like most. c. I think that __________ a plane is extremely scary because I’m afraid of height. d. My mother likes riding her scooter to work instead of ____________ her car because of the traffic congestion happening continually. e. This sign says ‘____________’, so you can’t park here, sir. f. Going to Nam Du Island? Wow, it __________ fantastic. I can’t wit for it.