- that he picked up French?It was in he traveled in France.A. Was it when; t

问题补充：

--- that he picked up French?

--- It was in he traveled in France.

A. Was it when; that

B. When was it; that

C. Was it when; when

D. When was it; when

答案：

A. Was it when; that

B. When was it; that

C. Was it when; when

(答案→)D. When was it; when

解析：句意：---他是什么时候学会法语的？---是去法国旅游的时候。这是一个强调句型的特殊疑问句。句式是：特殊疑问词+is/was+it+that+其它，所以只能选B或D。第二空是引导一个定语从句，在从句中做时间状语，用when.。故选D。