d by this strange natural phenomenon, the scientists started to explore every _______ they knew to figure it out.

Thank you for your beautiful scarf That’s______ what I need in such a cold winter

I’m afraid I’ll come back in an hour.– There is no need to rush back. Just _________ .

It is believed that Tom will make an outstanding racing driver because he has a talent ______ driving.[ ]

Theprofessorsaidthatyourdiscoverywas_____________．