Over the past five years we ___(do)nothing,so we must _____（do）so_英语解答

Over the past five years we ___(do)nothing,so we must _____（do）something that we can____(do) now.

人气：434 ℃　时间：2020-05-19 18:51:42

解答

have done Over/in/during the past five years 是现在完成时的标志
do
do