-I heard Back Street would sing at the New Theater.-Where did you ?A. pick that upB. put

问题补充：

-I heard Back Street would sing at the New Theater.-Where did you ?

A. pick that up

B. put that up

C. make that up

D. take that up

答案：

A. pick that up

B. put that up

C. make that up

D. take that up

解析：

句意：——我听说Back Street将在新戏院演唱。——你从何处得到这个消息的？pick up为获悉或打听到消息之意，符合句意。