问题
选择题
. Mary had taken _____ to see that her guests had everything that they could possibly want.
A.efforts
B.pains
C.attempts
D.endeavors
答案
答案:B
考查名词。take pains to do sth.下苦功夫做某事。句意:玛丽最终看到她的客人得到一切他们所能够得到的、