OVER THE LAST 15 YEARS THERE________ A 50% INCREASE IN THE TRAFFIC...
31. Over the last 15 years there________ a 50% increase in the traffic on our roads.
a. is
b. was
c. has been
d. had been
31. Over the last 15 years there________ a 50% increase in the traffic on our roads.
a. is
b. was
c. has been
d. had been