---Sunday is a public holiday, _____children should get close to nature. ---But most of them have several lessons to attend.
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.
A cool drink will make you feel ____ in a hot summer day.
When our school formed an English club, I____ it as soon as possible.
They were ____cleverer than me. None of us passed the exams.