在过去,大部分家庭都用油灯和蜡烛照亮房间。
In the past,oil lamps and candles _________ __________to light the rooms by most families.这个箱子太重了,我自己抬不起来。
The case is too heavy for me________life it________ _________ ___________.这个年轻人很勇敢,他从火场里救出了孩子。
__________ ____________very brave_______the young man________save the child in the fire.如果你发高烧了,应该尽快看医生。
You should see a doctor__________ ________ ________ _________if you have a high fever.孩子们可以从义务工作中学习怎样帮助别人。
Children can learn_______ _________help people from the voluntary work.