All of a sudden, the thief walking behind a young and pretty lady ____ her purse, ____ into the crowd.

There is hardly an environment on earth ______ some species of animal or other have not adapted successfully.

in painting, John didn’t notice evening approaching.

I don’t think that your speech _____to the crowd, for they appeared quite puzzled.

A lot of famous doctors gathered in Harbin ______ save “China’s most beautiful teacher”— Ms Zhang.