Sam has been appointed _____ manager of theengineering department to take _____ place of George.

Tina, I want to have a pet. How about a dog— I prefer a cat. It is ______ to take care of.

Do you think shopping online will ________take the place of shopping in stores

It is said that the student seriously ill for two months last semester.

Miss Li has taught ____ English for about 3 years. —You are lucky. ____ is a very good teacher.