1.(2019·全国卷Ⅰ，65)In recent years some Inuit people in Nunavut ________ (report) increases in bear sightings around human settlements, leading to a belief that populations are increasing.
答案：have reported 根据句中的时间状语“in recent years”可判断用现在完成时。
2.(2019·全国卷Ⅲ，65)Our hosts shared many of their experiences and ________ (recommend) wonderful places to eat, shop, and visit.
答案：recommended 根据“shared”可知，此处讲述过去发生的事情，故用一般过去时。
3.(2018·天津高考，13)My washing machine ________ (repair) this week, so I have to wash my clothes by hand.
答案：is being repaired 句意：我的洗衣机本周正在被维修，所以我用手洗衣服。is being repaired “正在被维修”。
