be helpful to do为什么不对

be helpful to do为什么不对 作文Be helpful to others Be helpful to others急! be helpful in be helpful to be helpful for 三者区别即怎么用 Try asking yourself what you'd do if your goal were to be helpful rather than efficient.if your goal were to be helpful rather than efficient.were to be helpful 这个结构是被动语态么?还是别的什么. 有没有be helpful（for sb） to do这个短语 Do not be afraid为什么不加to If parents never expect their children to be helpful at home,they are sure_.If parents never expect their children to be helpful at home,they are sure___. A.not B.not to C.not to be D.not to be that 为什么选C不选B? 有没有be helpful to sb i like to be a helpful be helpful to others的另外一种说法和help sb.to do sth.的另外一种说法 washing food down with water as a substitute for chewing is not a good idea,but,some water with meals has been found to be helpful1.substitute for前面为什么会有冠词?2.to be helpful是some water with meals的主语补语?3.to be helpful是不 To be lovely Shanghainese,we should be helpful and ( ) to others.(friend)为什么用副词的形式? 英语翻译that makes them different from the rest of us.2.be helpful to everyone and do it happily. We find it ___________ to do some reading every day.A.easily B.be enjoyable C.helpful D.interested We find it -----to do some reading everyday.a.easily b.be easily c.helpful d.interested be surprised to do sth为什么be后面不跟doing? I am going to be a reacher,为什么一定要用be,不能用do?