Use the verbs in the brackets in the correct form.
The population of big cities (to increase)
dramatically in recent years. Together with an increase in
population, the number of cars (to grow). It
(to result) in overcrowded roads and pollution.
Urgent measures (to need) to solve these
problems. Over the last few years a number of new
strategies (to suggest) by urban planners to
improve the situation.
increased
grew
results
needs
suggested