13. The book ___ 50 maps , ___a Chinese map and an American map .

In fact___ is a hard job for the police to keep order in an important football match

s a very interesting book I’ll buyit, _______

The police recognized the criminal from his typical facial ________.— a scar on the forehead.

He doesn’t have _____ breakfast in the morning, but he usually has _____ big lunch.