根据括号内的汉语提示,完成句子。 小题1:The grandchild nods his head to show his ________(同意) to his grandpa. 小题2:I think __________(回收) can not only protect the environment but also save money. 小题3:Humans have come to realize the ___________ (重要)of protecting animals. 小题4:A large population can cause lots of __________ (困难)for the whole nation. 小题5:There are several chemical factories _______ (倾倒)waste water into the streams. 小题6:Some parents in less_________(发展) areas prefer boy or girls, don’t they? |