She sat at the desk and set about _____ a letter to her friend.
______ world’s largest retailer, Wal-Mart, has opened its ______ third store in Beijing, which means the firm now has 52 stores in China.
——Alvin, are you coming with us?—— I’d love to, but something unexpected _______.
Walmart, which is one of the largest American supermarket chains, _______ some of its store open 24 hours on Mondays through Saturdays.
He is a very careful man, but he ________ make mistakes which seem ridiculous
One of our rules is that every student _______ wear school uniform while at school.