The volunteers are c() the streets at the moment.怎么写

what are you doing at the moment?怎么回答 A.at the moment B.the moment C.for the moment D.in a moment的 At the moment ,they are ( )books. ()are having dinner at the moment during the streets are s_____ at the moment 时态 at the moment等于? at the moment是什么意思 翻译at the moment at the moment 和for the moment The volunteers at the airport offer___heavy luggage for the What are the streets like in your city？怎么回答