According to the passage, Holland flower market is ______ in the world.
According to the passage, when could most people in Holland afford to buy common tulips

单项选择题Why do many people criticize train travel A．Because they feel it has changed a lot. B．Because they feel it is not fast enough. C．Because they feel it is often expensive. D．Because they feel it doesn’t suit long journeys.

单项选择题How many foreign kids does Judy have in her class