We Chinese held many activities to celebrate our country's 70th birthday on O 1st,2019.
一个人书读得越多,就会变得越聪明.
The more books a person reads, .
格林先生使我们很容易地学习英语.
Mr. Green made it to learn English.
他自从来到我们学校就教我们物理.
since he came to our school.
昨晚九点你在做什么呢?
at nine o'clock last night?
有几个人在门口等你.
waiting for you at the door.