We consider it is necessary for you to _______ the establishment

We consider it is necessary for you to _______ the establishment of the L/C, so as to us to _______ carry out the order smoothly.
A、expedite,enable
B、pay attention to, help
C、encourage,make
D、work toward. let
【正确答案】：A
【题目解析】：A:expedite 加快、加速；B：集中注意力 C: 鼓励 D：致力于
句意：我们认为有必要贵方尽快开立信用证，以便我方顺利开展订单。