1．His backpack is on the desk．（就劃線部分提問）

_________ _________ his backpack?

2．Jack eats hamburgers for dinner．（變?yōu)榉穸▎枺?/p>

Jack _________ _________ hamburgers for dinner．

3．Her pants are white and bIack．（對劃線部分提問）

_________ _________ are her pants?

4．My father plays ping-pong well．（變成一般疑問句）

_________ his father _________ ping-pong well?

5．This is all orange．（改為復(fù)數(shù)句子）

       ____________________________________?