—My good friend Tom, together with his classmates, 　　　 going to visit Shenzhen.

—Will he phone you as soon as he 　　　　 here?

A．are; arrives

B．are; will arrive

C．is; arrives

D．is; will arrive

市场利益是运输市场对运输供需双方交易行为导向的指挥棒。