Maybe If I get my gradesat school I can enter the key university.A. upB. outC. onD. over

问题补充：

Maybe If I get my gradesat school, I can enter the key university.

A. up

B. out

C. on

D. over

答案：

(答案→)A. up

B. out

C. on

D. over

解析：考查介词的辨析。句意：要是我在学校的成绩再高一点，我就能考上重点大学了。高一点，上升，A最合适。