题目内容：

用括号中所给动词的正确形式填空，’使短文完整。

When Buck woke up, the train was still moving.  The man 1. (sit) and watching him, but Buck was too quick for him and he bit the man's hand hard. Then the rope

2. (pull) again and Buck had to let go.

That evening, the man took Buck to the back room of a bar in San Francisco.

"How much have they paid you for this?" he asked.

"I 3.(get) fifty dollars."

"And the man who stole him--how much did he get?" asked the barman.

"A hundred. He 4. (ask) for more."

"That makes a hundred and fifty.  It's a good price for a dog like him.  Here, help me 5.(get) him into this."

They took off Buck's rope and pushed him into a wooden box.  He spent the night in the box in the back room of the bar.  His neck still ached with pain from the rope, and he could not understand what it all 6. (mean).  What did they want with him, these strange men? And where was Mr. Miller?