用Is this 提问的选择疑问句为什么用It is 回答,而不能用This is回答例如:Is this an apple or a banana?为什么不能用This is an apple.回答?讲出道理!

用Is this 提问的选择疑问句为什么用It is 回答,而不能用This is回答例如:Is this an apple or a banana?为什么不能用This is an apple.回答?讲出道理! 对画括号的部分提问,用特殊疑问句.This car is (a Ford.) Is this coat big?用small将原句改成选择疑问句 Is this your father (用YOUR uncle 改为选择疑问句) This boy is seven.（用nine改为选择疑问句） This is a TV(用 a computer)改为选择疑问句 This man is tall.(用short改为选择疑问句） This is a clock.用whach 改为选择疑问句 This shirt is very cheap.用dear改为选择疑问句 Is this a bathtub?(用shower改为选择疑问句） This desk is red 改为选择疑问句 This is Lucy and this is Lily.(用or改为选择疑问句) 怎样把陈述句：This is Lucy and this is Lily.用or改为选择疑问句LI Is this your pen Is this his pen?选择疑问句 句型转换 this parcel is as heavy as that one.改成比较级的形式 this road is wider than that one.改写为选择疑问句 （Sam）is the tallest boy in our class.就括号内容提问. how is this word pronounce?为什么用is提问 This is rose,and that is cindy.改为选择疑问句 It is March thir tieth doday 的一般疑问句对this tieth today划线并提问