His wife, to whom he _____ for 20 years, died of cancer last Thursday.
. Tommy’s parents thought he was at school, but _______ he was in an Internet bar.
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? —________