Remember to turn off the lights before leaving the classroom, children.— .

You have done a good job in the English speech competition.—Thanks, but I wasn’t as calm as I _____.

My mother often_______ after supper with my sister .

（题文）They __________ a certain amount of working experience through volunteer work.

Walmart, which is one of the largest American supermarket chains, some of its store open 24 hours on Mondays through Saturdays