The pair of shoes  __________ worn out.

One-third of the country ________ covered with trees and the majority of the citizens _______ black people.

—Have you heard that Tom, along with his parents, _____ to Japan?—Really? No wonder I haven’t seen him these days.

Neither Tom nor his parents ______ at home.

A lot of people as well as the president of the animal protection association ____________ experiments on animals.