________all the work finished ahead of time,I feel relaxed and very happy to be reading the papers.
A:With
B:While
C:When
D:For
区别字组词。
青 ____ 奇____ 旁____
清____ 椅____ 傍____
禁止捕杀农田中的青蛙是因为( )
当今世界上土地资源遭受破坏最主要原因( )