step 2(for section) 1.连词成句(句末标点已给出）.the,is.sofa,a,on,backpack,_________?the,math book,in,is,the,bookcase__________.at,your,can,look,hat,new,l——————?david,keys,are,where,your-————-----?is,my,dresser,on,alarm,clock,the———————.

the,is.sofa,a,on,backpack,
___Is a backpack on the sofa______?
the,math book,in,is,the,bookcase
___The _math book___is in the _bookcase__.
at,your,can,look,hat,new,l
—Can I look at your new hat—————？
david,keys,are,where,your
-—David,—where are your —keys—-----？
is,my,dresser,on,alarm,clock,the
———The alarm,clock——in on my dresser——.

1 Is the backpack on a sofa?/ Is a backpack on the sofa?(两个冠词都应该是the )2,The math book is in the bookcase.3.Can I look at your new hat?4.Where are your keys,David?or David,where are your keys?5...