We were late because there was so ( many, few, a

We were late because there was so ( many, few, a lo tof, much)
who usually ( goes ,going , go) to the farmers markt at weekends
all the babie a re sleeping . you (must not , must, may ) keep silence because they might wake up and cry.
i ( have not paid , did not pay , am not paying) for the grocery yet. please ,wait for me outside.
when i got home, grandma ( were making , was making , is making) a delicious apple pie.