they have expanded an investigation into the use of mobile device.其中into the use做什么成分,

they have expanded an investigation into the use of mobile device.其中into the use做什么成分, they (have)a party They have a lovely Our import and export have both been _____ these years.[A} expanded[B] enlarged[C] extended[D] spread并说明原因 They have a party. They have a big ( ) together. ( )they have a brother?( )they have a brother? A child's vocabulary ___ reading A expands through B expands with Cis expanded throughDis expanded with,why? They have a (happily) family They have a good time.( They have a great collection. They have a son and a (1). They have a computer?(变成一般疑问句)()they()a computer? They have done a good job. ..“They have done a good job.” “ .”　A) So they have done B) So they haveC) So have they D) So is it They have a good time.(同义句)They ______ _______ . 划线提问They will have a test tomorrow.They划线. they ____(have) a meeting next week,aren't they? they cant see a film unless they have tickets 同义 They have a lot of vitamins=They are____in vitamins