Complete the sentences using comparative

Ex2. Complete the sentences using comparative:

a.Hoa/ careful/ Lan.     ………………….........…………

b.This exam/ difficult/ that one.    ……….............………………

c.These chairs/ comfortable / those ones…………………………

d.These films/ interesting/ those ones  ………………............………

e.A bicycle/ convenient/ a car    ………………….............………