Answer:
Huge tunnels were built for sewer lines.
New aqueducts brought fresh water from hundreds of miles away.
Broad boulevards were constructed.
Explanation: I just took the test and I had two questions that were similar to that and those were the answers that were correct.
<span>They would want to expand east+south because it would be hard to expand the other directions through deserts and mountains.
Hope this helps!! :)</span>
The cause is that he forgot his math book
the effect this had was that he couldn't do the homework