After Jack had sent some e-mails, he working on his project.
A. had started
B. has started
C. started
D. starts
After Jack had sent some e-mails, he working on his project. A. had started B. has starte
答案:2 悬赏:70 手机版
解决时间 2021-01-23 07:44
- 提问者网友：沉默的哀伤
- 2021-01-22 22:23
最佳答案
- 五星知识达人网友：轮獄道
- 2021-01-23 00:00
A. had started B. has started C. started D. starts解析：考查时态：句意：杰克发了几份电子邮件后，开始做他的课题。状语从句是过去完成时，开始做课题是过去发生的，才能构成“过去的过去”的动作，所以选C。
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- 1楼网友：長槍戰八方
- 2021-01-23 01:26
这下我知道了
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