The tour guide wore a dark shirt and cap as he pointed out the sign listing the rules to his young passengers.
A tour guide is teaching the passengers about the rules.
the bus driver posed for student photographers
Case studies belong to evaluation rather than research.
They have a set schedule for testing.
Republican rep is unorthodox.
You must wait until evening to join the pilgrims.
Both men are taking a break.
The man is flying to mars.