1.Im going t retire soon. Then I wont work anymore.a)

1.Im going t retire soon. Then I wont work anymore.
a) must
b) have to
c) can
d) should

2.My brother is thinking sellling his car.
a) of
b) to
c) on
d) in

3.I would like my brother a new book by this author.
a) buy
b) to buy
c) buying
d) had bought

4.In a panic, she started to run. Whoever it was, they closer.
a) getting
b) are getting
c) were getting
d) got