动词接动名词还是不定式
'一个及物动词后接另一动词作宾语时,有时只能用不定式,有时只能用动名词,有时用不定式或动名词均可且含义相同,有时用不定式或动名词均可但含义不同。具体情况...'
地点状语从句考题透析
'请看下面一道题:When you read the book, you’d better make a mark _________ you have any questions.A. at which B. at where C. the place where D. where ...'