Are they students?（改为单数句）

( )are her students.They are good( )are her students.They are good students. Are they students?Yes they are有什么错 They are both students.改为同义句 they are ------ students 空里用all 还both Are they students?（改为单数句） they are students改为否定句 They are good students怎样翻译? are they american students?改为单数形式 students,they,here,are连词成句 They are students改为否定句 The students are having ___lessons now.(they) Our students are very good and they are polite and helpful一句话中有两个and的了,算错么,如果错请帮减少改的范围. they both are students.和they are both students.哪个正确? It seems they are students.等不等于It seems that they are students. They are new students here.I don't know____(they). They are good students and they're ___ China Whose skateboard are they?They're the________(students) What are they?They are buses改位单数形式