She studies ___ medicine before she turned ___ writer.
— How much__________the shoes?—Five dollars__________enough.
A vast area north of the Yangtze River__________by the first heavy snow of the new year,causing difficulties to the post-festival road transport.
The excellent service of the waiters __________highly praised.That’s why the restaurant is always full of people.
There has been a great increase in bicycle sales this year________?
Many people like white color as it is a ________ of purity.