, this kind of disease can do great harm to people there．
| A．Occurring where | B．It occurs where it is |
| C．Where does it occur | D．Where it occurs |
When _____ comes to codes of ethics, I think everyone should strictly obey them.
| A．that | B．this | C．it | D．one |
One of the collectors collected some seeds from a tree that had _____ him.
| A．interest in | B．appealed to | C．been attracted | D．drew attention of |
It was in the factory _________ his friend worked _______ he picked up a lot of experience.
| A．where, where | B．that, where | C．that, that | D．where, that |
-----They say Tom’s brother is a billionaire.
----_____________? He wouldn’t accept any help from his brother, even though it was offered.
| A．What if | B．What for | C．So what | D．Forget it |
They returned home after a long journey,___________________.
| A．hungry & tiredly | B．hungrily & tiredly |
| C．tired & hungry | D．tired & hungrily |