The English language _______ the rules and vocabulary each group of people brought to Britain with them.

My uncle hasn’t been able to quit smoking, but at least he has _______.

“Do you need any help with those heavy bags？” “No, thanks; _____”

There are several research centers in China ________ a certain disease called Bird Flu is being studied.

Millie doesn’t study hard. _______, she often fails to pass the exam.