问题

December is the __________ month in year
A:when
B:if
C:unless
D:though
B:if
C:unless
D:though
正确答案是:
同类题型
.By using ear sonecan tell the direction____a sound comes.
Our city has experienced _______ this year as it did last year
The local police were______ by their authorities to _____ the situation as soon as possible.[ ]
New reports say peace talks between the two countries have broken ____with no agreement ________