It was the first time that I _______ visitors since I’d moved to London.

The lady insisted that the young man _____her wallet and _____to the police station at once.

(2011·湖南)One－third of the country ________ covered with trees and the majority of the citizens ________ black people.

—What does the sign over there read?―“No person ______ smoke or carry a lighted cigarette，cigar or pipe in this area．”

—I have got a headache.—No wonder.You___in front of that computer too long.