he is always acting the experienced man who has seen everything这句话中为什么用acting而不用act 还有后面的从句中为什么要用现在完成时,

he is always acting()答案是foolishly,为什么? He is acting unusually.翻译! he is always acting the experienced man who has seen everything这句话中为什么用acting而不用act 还有后面的从句中为什么要用现在完成时, he always还是he is always? 是He always is healthy还是He is always healthy He is always there to Wherever he goes,he is always welcome He always smiles He is always smiley 都可以吗 帮我翻译一下 He is acting an old man． Acting Acting he is always angry.he is u____ to people he is an u--------man.he is always dressed badly he is always __(confidence)that he is right He is always in his words He is always living things about. He is always ___(study)hard. 翻译Tom is seaman.He always drnks.