81/ Our clients ___ in 30 minutes.
a are going arrive
b are going to arrive
c have going to arrive
d are arrive
82/ By that time, the presentation ___.
a will starting
b will have starting
c will have started
d will have start
83/ After more workers are hired, the factory’s capacity ___.
a will start
b are going to arrive
c will starting
d will double
84/ By the time more large printers are set up, demand for publications ___ twofold.
a increases
b have increased
c increase
d will have increased
85/ Due to a decrease in interest rates, more people ____ to buy their own houses.
a tries
b try
c will try
d has tried
86/ For the last few months, oil prices ____ drastically.
a have increased
b will increase
c increasing
d increases
87/ Most of the stores downtown___ at 10 in the morning and close at 9 P.M.
a opens
b will open
c open
d have opened
88/ Many of the employees in this factory ___ to leave after the huge salary cut three weeks ago.
a have decided
b decided
c decide
d decides
89/ The only grocery store in this town is temporarily closed because it ___ a renovation.
a have undergone
b will have undergone
c is undergoing
d undergo
90/ The number of tourists visiting this city ___ for the past few months.
a has risen
b risen
c rises
d have risen