请根据句意从方框中选择合适的动词，并用其适当时态填空，使句子通顺。
| be move wash discuss swim |
1. No one knew the earth _________ around the sun many years ago.
2. Tom ________his car very carefully already, no wonder it looks very clean now.
3. —I didn't see you when my mother asked me to return the raincoat to you yesterday evening.
—Oh, I __________ our plan for the trip with my classmates in my classroom.
4. Look at the clouds in the sky. I think there _________ a storm soon.
5. My brother often _________ in the river when he lived with my grandparents in the countryside.