We all thought that Betty could have run _______ ifshe had worn the sports-shoes that day

It has been accepted that all the students ____ put on masks before going to school in case they are infected with flu virus.

______ is ______. The wrong answer is ______.[ ]

Mr Ma prefers ______ his dog after supper _______ him relaxed every day.

What’s your plan for this winter vacation—I’ll take an express train to Shanghai for my holiday___________ school ends.