He was obliged to the trade of shoemaker.A. take on B. take inC. take upD. take down

问题补充：

He was obliged to the trade of shoemaker.

A. take on

B. take in

C. take up

D. take down

答案：

A. take on

B. take in

(答案→)C. take up

D. take down

解析：考查词组辨析：A. take on 承担，呈现，B.take in理解，吸收，欺骗C. take up占据，从事，D. take down记下，句意：他被迫从事鞋匠的事情。选C。