________ is ten plus twenty? —It’s thirty. [ ]

Kate was born ______ America, _______ October, 1990. [ ]

I feel uncomfortable each time I remember the situation _____ Mary didn’t agree with me _____ the matter.

John lost his job last year, but it wasn’t long ______ he found a new position in another company.

John rode to the park just now, but now he _____. Can’t you see him in his bedroom?