He never ________ no matter how many difficulties he has.

________ is that man— You don’t know him He is Ma Yun.

In high pace of life, we can see a _________ flow of cars running in the streets, high ways and subways every day.

____ large number of children have joined the book club and ____ number is increasing.

Look at the photo. The girl is my little sister.—She really ______ your mother.