英语中,怎样对grass进行提问?是说 What’s this?It’s grass.还是 What are these

英语中,怎样对grass进行提问?是说 What’s this?It’s grass.还是 What are these What 's that on the grass?---It's -----sheep what's this...可以用This is...还是必须用It’s 来回答?还有What are these/th what are they?They are stationery是对的吗?还是What's this?It is st what's the English for these?如何回答?是 It's...还是they are... It's(an orange)提问是What is this? What are these?( ) carrots A.it's B.these a what's the English for this对,还是what's the English for it对? 【英语】对划线部分进行提问.These two boys are Linda's brothers.These two 1.What's this/that in English?怎样回答?是It's a/an 名词 还是 It's 名词 a an are is these this it\'s what 怎么用? 用这些a an are is these this it's what回答下面问题