made her parents worried a lot.
A. Her not to e back
B. Not her to e back
C. Her not ing back
D. Not her ing back
网友回答
A. Her not to e back
B. Not her to e back
(答案→)C. Her not ing back
D. Not her ing back
解析：此句考查ing形式的复合结构在句中作主语,其否定形式是在ing形式前加not。