1.A lot of emails __(send) every day
2.A lot of emails __(send) the day after tomorrow
3A lot of emails __(send) now
4 A lot of emails __(send) this time yesterday
5 A lot of emails __(send) since last month
6 A lot of emails __(send) by the end of last month
怎么填?这种题怎么都不会
还有道7 Our grandfather said a lot of emails___(send) the next day