ex1
a) present
b)present
c)future
d)present
e)future
f)future
g)future
h)future
i)present
j)future
k)future
ex2
b) are coming
c) am seeing
d) is holding
e) are working
f) is playing
g) is decorating
h) are buying
ex3
a) On Monday, Mark is going out with friends
b) On Tuesday, he is visiting his relatives
c) On Wednesday, Mark is seeing the dentist
d) On Thursday, he is playing tennis
e) On Friday, Mark is repairing his bike
f) On Saturday, he is going fishing
g) On Sunday, Mark is swimming in the pool
