如果你不戴口罩,就不允许上公交车.
If you a mask, You will not be allowed to get on the bus.
她没有呆在家里过春节,而是去了武汉当志愿者.
staying at home for the Spring Festival, she went to Wuhan to be a volunteer.
我们永远不要拿不属于我们的东西.
We should never take anything that doesn't us.
我们应该思考如何把中国文化介绍给全世界.
We should think about how to Chinese culture the world.
That is his old house. He lived there for twenty years. (合并为一句)
That is his old house he lived for twenty hours.
His mother will come back ____. (对划线部分提问)
will his mother come back?