Are you learning art now during your spare time? —No, I’ve stopped ________ Chinese medicine instead.

What do you think of Confucius?—He wasan ancient teacher ______ wise sayings haveinfluenced many people in different countries.

Who taught ________ to write the computer programs? —Nobody. She learned it by __________.

How long have you _______________ the motorbike?—For about two weeks.

The price of this bicycle is quite _________. I don’t have enough money to buy it.