Peter is a brilliant language learner. Within two weeks, he hasdeveloped a good __________ of Chinese and Japanese. A. custom B. imaginationC. exception D command
In ancient times, people rarely travelled long distances and most farmers only travelled __________ the local market.
Teachers recommend parents __________ their children under 12 to ride bicycles to school for safety.
Sit down, Emma. You will only make yourself more tired, __________ on your feet.
Go back home now, Mary. Your parents __________your safety.
I did a lot of work on that book. It annoys me that the editor never __________ that.