III

1.the biggest

2.higher....higher

3.the largest

4. good

5.more expensive

IV

1.to buy

2.looking

3.to buy

4.to sell

5.shopping

V

1.will be

2.is going

3.is taking

4.are you going to meet

3.won't take

VI

1.will have been working

2.will have started

3.will have written

4.will have been travelling

5.will have been driving