James is an English boy. He _____ from England.

Some people are worrying about the possibility ________ mobile phones could be responsible for a range of illnesses, from rashes(皮疹) to brain tumors

Everybody knows about it! No one knows _________prevented the rumor from spreading.

The trousers3pockets ______ in Shanghai .

Today Bob contradicted Ms. Li, our math teacher, inclass, _____ made her angry with him.