He won’t join in the party. I won’t, _________.

He is tall, _____ his son is short.

______ you have nothing important to do, why not come with me to the cinema?

I stayed at home .I went      to the park      to the cinema. 

--There             so many foreigners in the streets these days.-- They might be runners in the Yellow River Estuary (入海口，河口) International Marathon.