Classes will be cancelled for an ______period.

问题描述:

Classes will be cancelled for an ______period.
a)indescribable
b) indefinite
c) independent
d) indecent
The meeting was adjourned ________Wednesday
a)by
b)to
C)until
D)as to

第一题选 B,indefinite 意思为“不明确的”,整句话意思是由于不明原因,这堂课要被取消.
第二题选 C,纯粹考介词,会议直到星期三才开始开,前面一直都是休会.