1．Don't go against the rules of nature ________ (永远)．
答案：forever
2．Jeans are not ________ (适当的) for the formal party.
答案：appropriate
3．Be good to each other and you'll feel the ________ (温暖) of mankind.
答案：warmth
4．Her mother's recovery took a ________ (负担) off her mind.
答案：load
5．As we all know, Lang Lang is a famous ________ (钢琴家)．
答案：pianist
6．They had to make great concessions in e________ for economic aid.
答案：exchange
7．Only in this way will we get investors and s________ for the project.
答案：sponsors
