21. She felt rather _______that she should drive the car at such a___________ speed.
A. frightening, frightening B. frightened, frightened
C. frightened, frightening D. frightening, frightened
22. Cleaning women in big cities get by the hour.
A. pay B. paying C. paid D. to pay
23. When _____ the letter, tears came to her eyes.
A. she was reading B. reading C. she reading D. read
