______in health,he insisted on doing the experiment.
Although at times learning to play the piano Was tiring for me,it was well worth he_______.
一What’s the problem with your mountain bike Thomas?一 _______.I can manage it and catch up with you
I always take something to read when I go to the doctor’s ___________ I have to wait.
Prices of daily goods ___________ through a computer can be lower than store prices.
Courage is a kind of quality --- and that’s __________it takes to face the challenges in life.