Q: If Information Retrieval System (AIRS) to generate ozone concentrations for the entire ozone season., can we say that "Ozone must be generated "?

A: it is not possible to tell

Q: If We are in the air a lot, and in hotels and restaurants., can we say that "We are in hotels and restaurants often, as well as being in the air."?

A: yes

Q: If Rebuilt by the Romans to hold 15,000 spectators (one of the largest of the ancient world), the Greek Theater dates back to the fifth century b.c. when Aeschylus himself arrived from his home at Gela to supervise productions of his tragedies., can we say that "The Greek Theater was constructed in the fifth century b.c."?

A: yes

Q: If you know get a big crown done you know things like that but, can we say that "He got a big crown done."?

A:
yes