His friend didn't know what he should do改同义句His friend didn't kno_英语解答

His friend didn't know what he should do改同义句
His friend didn't know（）（）（）

人气：104 ℃　时间：2019-09-20 05:42:36

解答

复合句改为简单句
疑问词带下来,后面加to do
what to do