We are looking forward to you as soon as possible.
A. hear
B. hear from
C. hearing
D. hearing from
网友回答
A. hear
B. hear from
C. hearing
(答案→)D. hearing from
解析：句意: 我们期望尽可能快地收到你的来信。as soon as possible 尽可能快的；look forward to+名词/代词/动名词“期望”。 hear 听见， hear from sb.收到某人的来信。故选 D。