问题
选择题
He devoted all the time _____ his research .
A.to do
B.doing
C.to doing
D.did
答案
答案:C
题目分析:考查词组:devote all the time to doing,致力于做…,句意:他所有时间都致力于他的研究。选C。
点评:英语中有的词组的to是介词后面要接动名词做宾语,如:be used to doing,look forward to doing等,不要和不定式混用。