57. _________
from heart trouble for years, Professor White has to take some medicine with
him wherever he goes.
A.Suffered
B.Suffering
C.Having
suffered D.Being
suffered
58 Having a
trip abroad is certainly good for the old couple, but it remains ____whether
they will enjoy it.
A. to see B.
to be seen C.
seeing D.
seen
59 It is said
in Australia
there is more land than the government knows________ .
A. it what to
do with B.
what to do it with
C. what to do
with it D.
to do what with it