If you are trouble please call me 72335611.A. in; inB. at; atC. at; inD. in; at

问题补充：

If you are trouble, please call me 72335611.

A. in; in

B. at; at

C. at; in

D. in; at

答案：

A. in; in

B. at; at

C. at; in

(答案→)D. in; at

解析：句意:如果你有麻烦，请给我打这个电话72335611。in trouble遇到麻烦，call at拨打……电话。故选D。