Who told you about Dad’s illness? — The doctor ______．

One of the requirements for the experiment isthat the material _____ to its burning temperature．

lants, particularly___ to collectors, motivated them to explore on a large scale.

Paul had to write a history paper, _____ he couldn’t find time to do it

athy, in my opinion, is very __________.— Absolutely! She prefers home life to going out.