问题描述：
| It is ____ asking Tom for help, for he is always the last to help others. |
[ ] |
| A. useful B. helpless C. helpful D. useless |
考点提示：形容词
最佳答案：
| D |
问题描述：
| It is ____ asking Tom for help, for he is always the last to help others. |
[ ] |
| A. useful B. helpless C. helpful D. useless |
考点提示：形容词
| D |
上一篇：— Why didn't you know it was raining outside? — Oh, I was _____ in thought at that time. [
下一篇：I will treat you_____ McDonald's, because you treat me_____ your_____ friend. [ ]A. to; for