If city noise _______ from increasing, people _______ shout to be heard even at the dinner table

Teenagers _______ allowed to drive a car. — That’s true. It’s too dangerous for them to drive a car.

According to the police, _______ some facts undiscovered.

Though I _____ the phone number many times, the foreigner still couldn’t write down.

He must be the captain ______ group got the first prize in the ping-pong game.