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!
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