描述生活变化常用句型 — 英语选择题
题目
以前人们写信，现在他们发电子邮件。选择最符合这一生活变化的句子。 A. People used to write letters, but now they send emails. B. People use to write letters, but now they send emails. C. People didn't use to write letters, but now they send emails. D. People used to send emails, but now they write letters.