—The light in his office is still on. Do you know _______?—To prepare for the material(材料) the meeting will need tomorrow, I think.
We want to know _____to help them.
I want to watch the basketball match. Would you please ______ the TV?
Echo _____ for half a month. She’ll come hack in two months. A. left B leaveC. has left D. has been away
Li Hua studies English very _____and her English is _____in her class.
We should protect the animals ______danger.