When Helen saw her tutor nod ______ to her, she calmed down and went on with her performance .

A short, thin woman,          past middle age, visited the manager and applied for the job．

. --- Believe it or not, I passed the driving test at the first attempt yesterday.--- Great! But remember you can never be ___ careful when driving a car in the street.

The doctor will see you again next week. _____, you must rest as much as possible. 

Kevin was not good at Chinese at first. After two months in China, _____, he made great progress.