问题

He smiled politely ________ Mary apologized for her drunken friends.(2012·山东)
A:as
B:if
C:unless
D:though
B:if
C:unless
D:though
正确答案是:
同类题型
There will be a special prize for anybodywho _________ a TV set in our shop in the next two weeks.
You’d better not eat too much salt. It’s bad for your health. —
Why do you like to make friends—___________ friends I have, ___________ I feel.
for his invitation the other day, I should not be here now.
She says that she’ll have to close the shop ________business improves