--I'll be away on a business trip. Would you mind looking after my cat?--Not at all._________.
Mother told me ______ near the river.
His friends ignored his advice, ______ they knew it to be helpful.
I ______ along the road when I saw Peter. So we stopped and had a chat.
Betty will ring me up as soon as she ______ in Beijing.
The teacher requested that we ______ the classroom after using it.