At the swimming competition, they ________ arrive at the pool at 8.30. (had to/didn't have to)
had to
At the swimming competition, they _____ bring sandwiches for lunch. (had to/didn't have to)
had to
At the swimming competition, they ________ wear a swimming hat. (had to/didn't have to)
had to
At the swimming competition, they ____ wear goggles. (had to/didn't have to)
didn't have to
At the swimming competition, they ______ stay until 6 p.m. (had to/didn't have to)
didn't have to
At the swimming competition, they _________ pay 5 dollars to enter. (had to, didn't have to)
had to