After Jack ________ some e-mails, he started working on his report.A．sendsB．has_刷题宝

题干

After Jack ________ some e-mails, he started working on his report.

A．sends

B．has sent

C．had sent

D．would sent

上一题下一题 0.64难度单项选择更新时间:2016-04-19 09:24:33

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