Why are spellings of mom/mum different in England areas vs. the usa

1. in which sentence is the underlined portion a predicate nominative? for astronauts, going into space to repair orbiting equipment becomes a challenge. for astronauts, going into space to repair orbiting equipment becomes tricky. for astronauts, going into space to repair orbiting equipment becomes challenging. for astronauts, going into space to repair orbiting equipment becomes frequent.

Which sentences use correct subject-verb agreement? select two options. nancy and jim, the original founders of the gardening club, need more volunteers. one pair of gardening shears has been missing from the gardening shed since last year. the club, which will meet on sundays, require that everyone sign a waiver before joining. the town have generously donated a plot of land for the club to use for at least five years. community gardening have always been an opportunity to grow nutritious fruits and veg

Choose the sentence below that best represents a speech theme.