（ ）was to take what seemed the best course at the present moment .A All he could do B All what he could do C What he can do D That he can do

（ ）was to take what seemed the best course at the present moment .A All he could do B All what he could do C What he can do D That he can do
（ ）was to take what seemed the best course at the present moment .
A All he could do B All what he could do
C What he can do D That he can do

（ ）was to take what seemed the best course at the present moment .A All he could do B All what he could do C What he can do D That he can do
答案是A
这个题是提前的是一个文章的句子
　At all events,he couldn't help what would come now：all he could do was to take what seemed the best course at the present moment.And he persuaded himself that that course was to make the way open between Adam and Hetty.

A正确。从语法角度判断，A和C均可，从时态角度判断，排除掉C（全句为过去式）