We didn't go home ______ the old man was sent to the hospital. A. until B. when C. while
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.
Nobody teaches me English. I learn it all by______.