A: This line is so long!

B: We've been waiting for almost an hour!

A: I guess they do a really thorough check.

B: What are they checking for?

A: They need to make sure no one is carrying any weapons.

B: I'm glad they check thoroughly for that!

A: They also have to make sure no one has drugs.

B: Wow! I guess that's why the police dogs are here.

A: Look! There are only three people ahead.

B: After that, can we board the bus?

A: Yes. We're almost there.

B: Good! I'm tired of standing in line!