He is believed____________ in at his office on his way home.
It wasn’t until dark _________ he found _________ he thought was the correct way to solve the problem.
It was Feb 8 2014 (Beijing) ___the opening ceremonies of the 2014 Winter Olympics ___ in Russia.
There were some chairs left over ______everyone had sat down.
--Mom, what did your doctor say?--He advised me to live____the air is fresher.
Please remind me______he said he was going.I may be in time to see him off.