1 Since that time both the sales of pet food and the range of pet food products available have continued to increase.
(both the sales of pet food and the range of pet food products available; have continued; T:Since that time) (both the sales of pet food and the range of pet food products available; to increase; )
both the sales of pet food and the range of pet food products available both the sales of pet food and the range of pet food products available
have continued to increase
T:Since that time