单项选择题
As a gardener, Jim has to water the flowers and （） the grass in the garden every morning.
A. trim B. improve C. refine D. repair
单项选择题 What you do in your spare time is your own （）. However, it should not be harmful to others.
单项选择题 No sooner had we started on the road （） it began to rain.
单项选择题 He decided to go for a sailing holiday （） the fact that he was usually seasick (晕船).
