为什么要是give him this letter.为什么要用him

为什么要是give him this letter.为什么要用him let him look after this cat.为什么用him? 1.If my brother __________ come,give him this letter. Do you think it necessary for me to give him a letter 这句话为什么 I can ask him the way 为什么要用him I ___ him very well,but I haven't seen him this week.为什么用kno tell him about (it/this) 为什么? 英语语法问题:Please give the book to him.这句话为什么不能换成Please give him Give him my best regards疑问,为什么不加to? please give him my regards.regards为什么加s give him some water to drink 为什么有个to He can understand me when I give him orders.在这个句子中,order为什么要