问题
选择题
— You should have thanked her before you left.
— I meant _____, But when I was leaving I couldn't find her anywhere. [ ]
A. to do
B. to
C. doing
D. doing so
答案
答案：B
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— You should have thanked her before you left.
— I meant _____, But when I was leaving I couldn't find her anywhere. [ ]
A. to do
B. to
C. doing
D. doing so
答案：B