来自葛藤的问题
howlonghaveyou()atourguideAbeenBbecomeCbecameDwere
howlonghaveyou()atourguideAbeenBbecomeCbecameDwere


howlonghaveyou()atourguideAbeenBbecomeCbecameDwere
howlonghaveyou()atourguideAbeenBbecomeCbecameDwere
B句意:你()导游多长时间了根据句意应该是“成为”排除A、D、因为是现在完成时become的过去分词还是become故选B