lish class, our teacher often creates anenvironment __________ we are given the opportunity to solve problemsourselves.

When the robber with a knife came towards me,l picked up a stick to _______ myself.[ ]

The sign _____ “In case of _____ fire, push _____ red button.” [ ]

She has an _______ .

Which is in China, football, basketball or table tennis —Table tennis.