Low-carbon lifestyle is of great benefit to improve the world environment.________can be enjoyed from it until you have a deep understanding of it, however.
He hurt his leg climbing the mountain; otherwise, he _____ the meeting.
— Turn off the TV, Jack. ____ your homework now?— Mum, just ten more minutes, please.
The thief ________ in from the kitchen window as the door was closed.
John, look at the time. ______ you play the piano at such a late hour ?
It is hard for me to imagine what I would be doing today if I _______ in love at the age of seven, with the Melinda Cox Library in my hometown.