Question

【题目】Thanks for ______________ us ________ on the school trip.
A.let, go
B.to let, to go
C.letting, go
D.letting, going

Answer 1

【答案】C
【解析】Thanks for doing sth 是固定句式，for 为介词，后面常跟名词或动名词，故第一个空填 letting；let sb do sth，意为“让某人做某事”，let是实意动词，后面跟省略to的不定式，故选C。