he let me repeat his instruction ___ sure that i ubderstand what was ____ after he went away.
问题描述：
he let me repeat his instruction ___ sure that i ubderstand what was ____ after he went away.
A.to make, to be done
B.making, doing
C.to make, to do
D. making, to do
为什么选A 不选C
答
A.to make,to be done
首先第一个空格应选to make,动词不定式表目的
第二个空格,看后面是went away,表明该事件发生在过去,what was to be done ,被动,或者要用不定式也要说成what to do