About ________ percent of the earth's surface is covered with water.
I must run ______than the police officer. A. faster B. fast C. more fast
I like ______ on the beach. A. play B. playing C. plays
______ is it from Canada to Beijing. A. How often B. How far C. How about
______do they go to the store? A. How B.What C.Where
______4:00 plople arrive for the party. A.At B.In C.On