She is a well--known doctor now , but she _____ as a cleaner at the hospital for five years .
--- I promise to go shopping with you if you help me with the housework. --- ____ You are the last person to keep a promise.
The “Chinese Dream” is ____ dream to improve people’s well-being and ____ dream of harmony, peace and development.
— I hear Kris had an accident as he was riding his bike to school yesterday. — ________? He is always so careful when he is riding.
______ the numbers in employment, the hotel industry was the second largest industry in this country last year.
Under the environment of fierce competition, the only way John could imagine _______ stress was to get tougher by making greater efforts.