It’s difficult to live in a foreign country if you can’t understand the language there.A

问题补充：

It’s difficult to live in a foreign country, if you can’t understand the language there.

A. exactly

B. naturally

C. usually

D. especially

答案：

A. exactly

B. naturally

C. usually

(答案→)D. especially

解析：句意：在国外居住很难的，尤其是如果你不懂那里的语言的时候。本题考查副词的用法。exactly 意思是“确切地，准确地”；naturally意思是“自然地”； usually意思是“通常，经常”； especially意思是“尤其，特别”。结合句意，故选D.