Question

I have always regretted ______ harder at school.

A．not to study	B．to not study
C．having not studied	D．not having studied

Answer 1

D

試題分析：考察動詞regret用法。動詞regret后面要接兩個(gè)結(jié)構(gòu)，regret to do sth遺憾要做某事；regret doing sth="regret" having done sth遺憾做了某事；句意：我總是后悔在學(xué)校里沒有認(rèn)真學(xué)校。動名詞的否定式就是在動名詞前面直接加not。故D正確。
點(diǎn)評：要注意動詞regret后面可以接兩個(gè)不同的結(jié)構(gòu)，而且意義完全不一樣，，regret to do sth遺憾要做某事；regret doing sth="regret" having done sth遺憾做了某事；同樣用法的動詞還有forget等，在平時(shí)要多加識記。