Jack ......... climb the tree, but he ................ climb down!
Jack COULD climb the tree, but he COULDN'T climb down!
Jack ............ see Daisy, but Jack's brother ..................!
Jack COULD see Daisy, but Jack's brother COUDN'T!
Jack ............... write when he was three, but he ............. _ ................. a picture.
Jack COULDN'T write when he was three, but he COULD DRAW a picture.
Jack ............... go for ride bike, but his brother ..............
Jack COULDN'T go for ride bike, but his brother COULD.
Jack .............. dance, but his friends .................
Jack COULDN'T dance, but his friends COULD
Jack's parents ............... see lots of houses, but Jack ..................
Jack's parents COULD see lots of houses, but Jack COULDN'T.