______ playing tennis after class—Good idea!
It requires ____ your willingness to do the job. It also requires a lot of mental effort.
The girl is an excellent student but not once inthese years________ caught being late.
It’s polite to ________others when people askyou a question.
Would you please help me with my spokenEnglish? —-__________. First you should know practicemakes perfect.
