词组辨别:mean doing和mean to do.
mean to sth的意思是“打算做某事”；mean doing sth的意思是“意味着干某事”.
1. —Why haven’t you bought any butter ?
—I to but I forgot about it .
A. liked B. wished C. meant D. expected
解：答案选C. 本题难度较大，因为liked ,wished, meant 和expected 都可接动词不定式作宾语，但从句子的意思解，应选meant .这句话的意思是“我本打算去买，但我忘了”. 
