根据句意从方框中选用合适的词语，并用其适当形式填空。need; sleep; o
题型：填空题
问题：
| 根据句意从方框中选用合适的词语，并用其适当形式填空。 | |
2. He______to do his homework now, or he can't finish it on time. 3. Because of the coming exam, he didn't ______well, now he's very ______. 4. We should be ______ our great motherland. 5. Students should ______ each other. |