Question

【题目】Tommy ________ very hard since he came to our school.

A.studiesB.is studyingC.studiedD.has studied

Answer 1

【答案】D

【解析】

句意：自从来到我们学校以来，汤米学习一直很努力。

考查现在完成时。studies一般现在时；is studying现在进行时；studied一般过去时；has studied现在完成时。分析句子可知，此处构成“现在完成时+since+一般过去时”结构，强调时间的延续。故选D。