We are teachers.望采纳，谢谢This is a black and grey shirt的复数形式These are black and grey shirts.Swedish,your,are,friend连成一般疑问句题目有误吧？ 把原题写给我看。五，连词成句五，连词成句Are you Swedish friends?too,are,friend,your,tourists一般疑问句连词成句passport,your,pleass一般疑问句