Which of these sentences is correct? My group are in the lead.

My group is in the lead.

Which of these sentences is correct? The interview panel comprises three women.

The interview panel comprise three women.

Which of these sentences is correct? The police don’t have any new leads.

The police doesn't have any new leads.

Which of these sentences is correct? The crowd is growing as more people arrive.

The crowd are growing as more people arrive.

Which of these sentences is correct? Which team are going to win?

Which team is going to win?

Which of these sentences is correct? The gang has escaped.

The gang have escaped.

Which of these sentences is correct? The crew are made up of experienced sailors.

The crew is made up of experienced sailors.

Which of these sentences is correct? The committee has reached a decision.

The committee have reached a decision.

Which of these sentences is correct? We'll wait until the audience has arrived.

We'll wait until the audience have arrived.

Which of these sentences is correct? The panel conduct interviews in private.

The panel conducts interviews in private.