He is considering________English,because he thinks it of no use.
The boy asked his mother _______ go out to relax himself or not.
---Excuse me, Dad, but I'm going to the club to meet my friends in the football team.--- Ok. _____.
Paper money was in_______use in China when Marco Polo visited the country in________thirteenth century.
—Do you mind my smoking here? —________
.She wears so red clothes that I easily ________ her in the crowd.