题目内容：

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

"What shall I do," said a very little dog one day to his mother, "to show my thanks to our master? I cannot draw or carry burdens like the horse; 1._     _ give him milk like the cow ... I am a poor unimportant creature, not worth of keeping." So saying, the poor little dog hung down his head 2._     _ (disappointed).

"My dear child, Fido," replied his mother, "although your abilities are small, yet a hearty good will is enough3._     _ (cover) all faults. Just love him dearly, and prove your love4._     _ all the means in your power, and you will not fail to please him."

The little dog 5. _      (comfort). From then on, he tried his best to help his master do all kinds of things.

One hot day, after dinner, his master6._    _ (sleep) in an old summerhouse, with Fido by his side. Suddenly, Fido saw the walls 7. _     _  (shake). He realized the 8.     _ (dangerous) and began barking to awaken his master. Upon this the master woke up and had just time to get out of the door before the whole building fell down. Fido, 9._     _ was behind, got hurt by some rubbish which fell upon him. His master took care of him with the10._     _ (great) tenderness. Thus his love and loyalty（忠诚）had the full reward.