C. Le is used to ask about what someone did. The question uses the modal particle le, which is the sentence-end le, but the answer must use the verb-suffix le, the aspect particle, and the object must be quantified in terms of quantity or duration. If the verb is , it usually takes the suffix le and a verbal measure word tàng一趟(a trip to) before taking the object which indicates a place.



3.1     A:      Zuótiān wǎnshang dōu gàn shénme le?  


                   What did you do last night?


          B:      Xiě-le fēng xìn, kan-le huǐr diànshì, hái qu-le tàng túshūguǎn.  


                   I wrote a letter, watched a little TV and also went to the library.

The dōuused in the question is to show expectation of a list of events.



3.2     A:      Shàng zhōumò dōu mǎi shénme le?  


                   What did you buy last weekend?


          B:      Méi mǎi shénme. Jiù mǎi-le běn xiǎoshuō.  


                   I didn’t buy much. I only bought a novel.



3.3     A:      Wǔfàn dōu chī shénme le?  


                   What did you eat at lunch?


          B:      chī-le bàn tiáo diǎnr qīngcài.  


                   I ate half a fish and some vegetables.


The verb in this type of what-question can be any action verb that takes an object. The important thing is that this type of question asks for very specific information, so the answer must use verb-suffix le and the object must be quantified or modified. The question, however, uses the sentence-end modal particle le. “The more specific and delimited the action is made by reference to particular context, the greater the need for this verb-suffix –le, to the degree that it is obligatory where precision is given to the object or complement by quantifying it.” (P.C. T’ung and D. E. Pollard: 1982, p. 142)