Problem: Do "the cup" and "it" point to the same thing in the following sentence?

I poured water from the bottle into the cup until *it* was full.
****
A: yes


Problem: Do "Mr. Bond" and "his" point to the same thing in the following sentence?

When Mr. Bond , the veterinarian, came to look at the black horse that lay groaning on the grass, he felt him all over, and shook *his* head; one of his legs was broken.
****
A: yes


Problem: Do "leg" and "it" point to the same thing in the following sentence?

The donkey wished a wart on its hind leg would disappear, and *it* did.
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A: no


Problem: Do "tulip bulbs" and "they" point to the same thing in the following sentence?

What about the time you cut up tulip bulbs in the hamburgers because you thought *they* were onions?
****
A:
yes