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 t

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?agreement

(答案→)agreement 解析：【小题1】本句的含义为外孙点头以表示对他的祖父的同意，故本句空格处填同意的名词形式agreement。【小题2】本句的含义为我认为回收不仅能够保护环境而且能够节省钱，故本句空格处填循环的名词形式recycling。【小题3】本句的含义为人类意识到保护动物的重要性，故本句空格处填重要性的名词形式importance。【小题4】本句的含义为大量的人口给整个民族带来了许多困难，故本句空格处填困难的复数形式difficulties。【小题5】本句的含义为有一些化学工厂正在向溪流里倾倒废水，故本句空格处填倾倒的现在分词pouring。【小题6】本句的含义为在欠发达的地区，一些父母更喜欢男孩而不是女孩，故本句空格处填发展的过去分词developed。

这个问题我还想问问老师呢