Q: Valid English sentence (grammatically) or not: Because they hated him, the druids forced Jason to live in a cupboard

A: acceptable

Q: Valid English sentence (grammatically) or not: That Plato loved Aster proved to be his undoing.

A: acceptable

Q: Valid English sentence (grammatically) or not: As it rains harder, how much faster a flow appears in the river?

A:
acceptable