—What’s the best way to reach you if I have a question during the day?
—I'm glad you . It’s best if you send me an email.
A. ask
B. had asked
C. asked
D. were asking
网友回答
A. ask
B. had asked
(答案→)C. asked
D. were asking
解析： 句意：--如果我在白天有问题最好的联系你的方式是什么？--我很高兴你问这个问题，如果你能给我发电子邮件就最好了。因为这个问题是在上文问的，所以用一般过去式，所以选C。