问题
选择题
—Mr. Ding, I have some problems_______ the passage.
—Remember_______ it three or four times at least.
A．to understand; reading
B．understanding; reading
C．to understand; to read
D．understanding; to read
答案
答案：D
题目分析：句意：丁先生，我理解这个段落有一些问题。记住至少读三四次。Have problems doing sth做某事有问题，remember to do sth记住做某事，所以选D。