Gteat changea_____(happen)in china in last twenty years.Tom____(m_英语解答

Gteat changea_____(happen)in china in last twenty years.
Tom____(make)a lot of friends since he came to china last year.
填上适当的形式

人气：244 ℃　时间：2020-09-17 03:35:11

解答

have happened(因为有in last twenty years,用完成时)
made（有last year,用过去式）