----______ he have a tennis ball ?  ---- No, he _________.

----What ________ the number of the students in your school?      ---- About two thousand. A number of them _______ from America.

One third of the country _____ covered with trees and the majority of the citizens _____ black people.

–What ______ that? -It’s a map.

All the scientific evidence        that increasing use of chemicals in farming    damaging our health.