Question

【题目】We often keep in touch_________ email or talking _______ the telephone.

A. with; in B. at; on C. by;on D. by; for

Answer 1

【答案】C

【解析】句意：我们经常通过电子邮件或电话交谈保持联系。通过电子邮件用by email；电话交谈用talking on the telephone。故选C。