【题目】________ I admit that there are problems, I don’t agree that they cannot be solved.
A.When
B.Because
C.If
D.While

【答案】D
【解析】考查连词辨析。连词when当...时；because因为；if如果；while当...时；尽管；句意：尽管我承认有问题，我并同意它们不能被解决。根据句意可知while表示让步关系。故D正确。