The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good _______.
As we all know, many Chinese words have come into English, ______ typhoon, tofu and kung fu.
_____ of the students who took part in the military training is 450.
Please tell me the way you thought of _______ the garden.
Do you have any difficulty ________?
They lived a hard life and were often made _______ for over ten hours a day.