Gina a lot since she joined the art club.A. learns B. learnedC. will learn D. has learned

问题补充：

Gina a lot since she joined the art club.

A. learns

B. learned

C. will learn

D. has learned

答案：

A. learns

B. learned

C. will learn

(答案→)D. has learned

解析：句意：Gina自从参加艺术俱乐部已经学到了很多。since从句用于现在完成时，故选D。