You may ______ it that Jennifer will come and help us if we are in trouble.

A．rely on

B．carry on

C．base on

D．take on

小王暑假去黄山旅游，共花费1050元。小王的这次消费（   ）

①取决于其家庭收入能够承受     ②属于劳务消费 

③是钱货两清的消费             ④属于生存资料的消费

A．①②③

B．①③④

C．②③④

D．①②③④