Daniel goes to school by bus, but he walks ________ after school.
The boy _______ Ling Feng in the school is really _______ unusual student.
The survey shows that 200 students do different things during their vacations. ______ of them take classes according to the survey.
My grandfather walks _____ than my grandmother.
__________ these tips, and your time _______ doing research on the Internet _________ much worthwhile.