is this dress your friend's?可以说成 is this your friend's dress

is this dress your friend's?可以说成 is this your friend's dress Is this?your friend is Is this book used____ your friend's birthday present? Is this your friend's notebook?(改为陈述句） Is this girl your friend?Is this your girl friend? is this your dress?改为复数句 is this you watch 和what colour 's your new dress 中的句子成分 连词成句this,new,jenny,is,dress,your. Is this your boy friend?Is this boy your friend?Is this your What color is your dress可以说成What is the color of your dress 连词成句 perhaps dress this Nancy's is Is this your friend?怎么回答