指出下列句子中詞形變化所表示的語法意義和所屬的語法范疇。 He buys many books.
指出下列句子中詞形變化所表示的語法意義和所屬的語法范疇。 The book is being read by Smith.
指出下列句子中詞形變化所表示的語法意義和所屬的語法范疇。 I have many things to do.