成人英语三级考试

【单选题】I was very sleepy. I tried ______ my eyes open but I couldn't.
A. keeping
B. having kept
C. to have kept
D. to keep

网考网参考答案：D
网考网解析：
[考点] try的搭配及用法 [解析] try to do sth.意为“努力做某事”；try doing sth.意为“试着做某事”。B、C两项时态不对。根据题意选D。 查看试题解析出处>>