问题
选择题
If you can’t understand these sentences, your constant lack of handing in homework ____.
A.will blame
B.is blamed
C.is to blame
D.is blaming
答案
答案:C
题目分析:考查动词时态。句意:如果你不能理解这些句子的话,是你连续不写作业该受责备。固定短语:be to blame 该受责备,所以C正确。