We can't heat you clearly.Please speak ______.A.loud B.aloud C.louder D.loudly 请问选哪个?

如果有外教给你们上过课就知道了.大家都说louder please.不是听不清嘛,当然声音再大点了,就算原本很大声也不行,得更大,所以speak loud/loudly不可以 .没有speak aloud这个词组.
talk aloud有声说话法
magnifying aloud放大镜
think aloud自言自语
Practice aloud大声地练习
Not Aloud不出声
thinking aloud出声思维；放声思考；有声思维；有声思考
read aloud大声朗读；诵读；朗读；大声读
reading aloud大声朗读；大声朗诵；模仿朗读；朗读
Sing Aloud彤彤小姐
read aloud 大声朗读
reading aloud 大声朗读；大声朗诵
thinking aloud [心理学]出声思维；放声思考
think aloud 边想边说出,自言自语