.—When did you English?—When I was in college.A. pick upB. take upC. turn upD. put up

问题补充：

.—When did you English?

—When I was in college.

A. pick up

B. take up

C. turn up

D. put up

答案：

(答案→)A. pick up

B. take up

C. turn up

D. put up

解析：pick up 学会；take up 从事；turn up 出现；put up 举起，支起。