we _______ on our profect day and night in the past two weeks. 为什么是have worked

We should keep our classroom _______(clean). _______ have we for our picnic? We _______(see saw) a lot of new things _____(on,in)our way_____(to,from)Shunyi.填空,并翻译, we _______ on our profect day and night in the past two weeks. 为什么是have worked PR on line PR是什么的缩写 we went to Canada on our holiday how we would go on our field Hi,Canada,we are on our way! we are on our school tennis We get on well ( )our teachers. we depend on our own efforts We are on our school tennis we should cast our eyes on doing. We raised many s___ on our farm. we are putting on our sweaters是什么意思 on our farm we g______rice and wheat 不难发现,health,healthy与healthily是同根词,请用同根词补全句子1.care(n./v)_______(adj.)_______(adv.)Please____for our environment.He is a___boy.He ofren writes____.2.___(n.)dangerous(adj.)Don't play in the street.It's___.We should pr We should c____ our attention on our study