"did you ever smoke?" "the best con man of all time"
"I will always be there to help you" "always arrives on time" "there is always some pollution in the air" "ever hoping to strike it rich" "ever busy"
"she was ever so friendly"
误 Has the taxi arrived ever?
正 Has the taxi arrived yet?
析 在疑问句或否定句中,要问一个期望的事件是否发生,要用yet,而不能用ever。