这个句子we should be careful how much we eat of it.有疑问!为什么不是careful about how...什么时候不要about?

We should be friendly______animals. We're safer in a train than we should be if we travelled any other way.than we should 这里有没有什么词是提前的?我怎么看不懂这个句子的结构？ 这个句子we should be careful how much we eat of it.有疑问!为什么不是careful about how...什么时候不要about? 英语达人麻烦看下这个句子we should be aware of the importance of...为什么这里aware前面要用be呢 Remember what should be remember 这个句子对吗 should be polite这个句子的同义句是? We should be allowed to take time to do things like that more often ,在这个句子中为什么要用take We should be allowed to take time to do things like that more often ,在这个句子中为什么要用take ti We all agree to that suggestion that the meeting (should) be put off.这个句子当中有两个that的作用 we should be honest and make things in fair way.这个句子对吗?我们对待事情应该公平诚实,英文怎么说好,为什么? YOU SHOULD HAPPY这个句子对吗?还是YOU SHOULD BE HAPPY?why? More car pools should be formed in order to have fewer cars on the road and to use less gasoline.请解释should be 是什么语法结构,为什么句子用should be 结构 More car pools should be formed in order to have fewer cars on the road and to use less gasoline.请解释此句语法结构请解释should be 是什么语法结构,为什么句子用should be 结构 用 should be allowed to do sth 和we should not allowed to do sth造句 每个造三个句子 ( ) can we by car there?完成句子. 根据首字母提示完成句子：We should be f___ to animals,because they are our friends. 翻译句子:You can care,we should be strong and carry on 一定要准确一点啦! You cannot be too careful when you drive car.翻译这个句子.