问题补充：
Only when he apologizes for his rudeness to him again.
A. I will speak.
B. will I speak.
C. do I speak.
D. I speak.
答案：
A. I will speak.
(答案→)B. will I speak.
C. do I speak.
D. I speak.
解析：句意为：只有当他为自己的鲁莽道歉，我才再次乐意跟他说话。要做对此题，需思考两方面：一者only修饰状语并置于句首，主句谓语要实施部分倒装。其二，从时间状语从句的谓语apologizes for可知，是用一般现在时表将来，所以其主句该用一般将来时。B选项正确。
【考点定位】时态与倒装的综合考查。Only置于句首，修饰时间，条件，原因等状语从句或修饰副词，介词短语等，主句谓语要实施部分倒装。如 Only in this way can we succeed. 另在时间/条件/原因等状语主从句中，习惯在从句中用一般现在时表将来意思。如：I will go to attend the party as long as they invite me.
