Little Tom made a lot of mistakes his carelessness. A. as B. with C. becauseD. because of

问题补充：

Little Tom made a lot of mistakes his carelessness.

A. as

B. with

C. because

D. because of

答案：

A. as

B. with

C. because

D. because of

解析：考查介词。As 作为；with 和；because 因为后面加句子；because of 因为介词短语 。句意：小汤姆因为粗心犯了很多错误。根据句意选D项。