As a Senior 3 student if you want to get a good result it is important to a good state of

问题补充：

As a Senior 3 student，if you want to get a good result，it is important to a good state of mind for the coming entrance examination．

A. keep up

B. carry out

C. keep off

D. keep out

答案：

(答案→)A. keep up

B. carry out

C. keep off

D. keep out

解析：短语辨析。keep up保持；carry out执行；keep off使不接近，挡住；keep out扣留，留下。句意：作为一个高三学生，如果你想得到一个好结果，对即将到来的高考保持一种良好的心态是非常重要的。所以选A。