问题补充：
–Would you please tell me next ?
--Think it over . You’ll find a good way .
A. when to do
B. how to do
C. what to do
D. where to do
答案：
A. when to do
B. how to do
(答案→)C. what to do
D. where to do
解析：考查情景交际和疑问词+不定式。do在此是实义动词，意为“做”；需要加宾语。Ahen/how/where是副词，不能作宾语，排除B、C、D。what“什么”，可作do的宾语。故选A。
