I always have so many things to when I come back to the company after a trip abroad.A. ad

问题补充：

I always have so many things to when I come back to the company after a trip abroad.

A. add to

B. contribute to

C. attend to

D. appeal to

答案：

A. add to

B. contribute to

(答案→)C. attend to

D. appeal to

解析：考查词组辨析：A. add to增加，B. contribute to贡献，有助于，C. attend to照顾，处理，D. appeal to吸引，句意是;当我从国外旅游回来总是有这么多事要处理。选C