Thank you for let me on the trip today.
A. agree to；go
B. agreeing；going
C. agreeing to；go
D. agree；to go
网友回答
A. agree to；go
B. agreeing；going
(答案→)C. agreeing to；go
D. agree；to go
解析：thank sb for sth/doing sth，for是介词后面接感谢的原因；agree为不及物动词，agree to 同意做某事；let后接带to的不定式，故选C。