They were most likely to respond that boaters always or sometimes caused pollution and litter in the river (38%), shoreline erosion (36%), disturbance to wildlife (32%), and safety hazards on the river (32%).
(They; were; most likely to respond that boaters always) (They; to respond; that boaters; T:always) (They; caused; pollution and litter in the river; T:sometimes)
They They They
were to respond caused
most likely to respond that boaters always
that boaters T:always
pollution and litter in the river T:sometimes