I don’t think he tried his best to learn English, ___________ ?
Some scientists believe that there will be more robots in years.
Jenny is university student,. She likes playing chess after school.
—Do you know _______ for Hainan last week?—Last Tuesday.
— A computer is very popular and helpful .— I think so. It _______ in many different fields.
My uncle is an experienced teacher. He_____English since 2002.