33. The oil in the cooker ___ heavy smoke, which made us in tears and difficult to open our eyes .
We should place emphasis on development and security, and develop nuclear energy on the base of security.
In _________ eyes of children, playing on the Internet can only bring them________great fun.
— Everything for the project has been progressing smoothly so far.--- ____ that you’ll complete it on time.
At that time I was very worried about ____ I would become out of work.
Norman Bethune worked ____ in China as a doctor and saved many Chinese soldiers.