My friend won a prize _____ his essay about the importance of protecting the environment.[ ]

I’m sorry. I can’t agreewhat you said.[ ]

It’s time_____ us _____ practice _____ football. [ ]

“I want my leg! I want to run! I want to jump!”, a girl cried in the hospital in Libya(利比亚).

Daniel, the speech competition will begin soon. Please ________ the microphone a bit to make everyone hear more clearly.— No problem!