ls that a board?用英语怎么回答

ls that a board?用英语怎么回答 what es black?ls that a board? ls that a pencil作否定回答 ls that a book 做肯定回答 ls there Mike's desk用英语怎么回答 1、ls this your T－shirt 用肯定回答英语2、Is that a teacher is desk?用肯 ls that a radio怎么读 Is that a board? 怎么回答ls a correct word right or wrong ls that a ring 作否定回答并改为肯定句 ls that 1.ls this a box?(改为复数句子） 2.What's that?(用egg回答） 3.Steve is e