1)Put ... books into the bag.(this /these)
2)how much is ... dictionary?(that/those)
3)Look at ...beautiful flowers!(that/those)
4)Do you like ...picture?(this /these)
5)Is ... your brother next to the board?(that/those)

1)these2)that3)those4)this 5)that

Put these books into the bagHow much is that dictionary?Look at those beautiful flowers?Do you like this picture?Is that your brother next to the board?