【答案】There was nothing we could do

There was nothing we could do _______ wait at that moment.
A. but
B. rather than
C. in spite of
D. besides
答案
A
解析
在介词but,except,besides后跟不定式做宾语时,如果介词前有do及其变化形式时,不定式可省略to。选项中A、D均符合此用法,但but意为“除了……”,besides意为“除了……还……”。根据句意选A。