Whether it will do us harm remains_______ .
We welcome rain, but a(an)_______ large amount of rainfall will cause floods.
Your ideas are very interesting, but we need_________suggestions to get us out of the mess.
In the past, he rarely spoke unless others were speaking about something that ______ to him.
Joe ________ his anger, remembering the mistakes he had made before.
He does not_________as a teacher of English, for his pronunciation is terrible.