按要求改写下列各句,每空一词。 1. I need a computer. (改为否定句) I ________ ________ a computer. 2. The books are under the bed.(对画线部分提问) ________ ________ the books? 3. He can play football. (改为一般疑问句) ________ ________ play football? 4. There are four girls over there. (改为否定句) There________ four girls over there. 5. Is that your bookcase? (作肯定回答) ________, ________ ________. |