No, Julialee. You should use plurals throughout, as you are writing about TWO schools. "These two schools are the best English schools in Doha."

You somehow forgot to mention that they also have absurdly long waiting lists. In fact, I have even heard of parents being told that there is no place for their child on the WAITING LIST, never mind there being no place for the child at the actual school.

In reality, whether or not a school is absolutely marvellous is a secondary (and often irrelevant) question. The real questions are these, namely: "Does this school have a place for my child?" and "Can I afford the ridiculously high school fees? (And all of the outrageous extras?)"