John: 28 did you get so far?
答案：(B) How on earth
【句型】How on earth 是加強語氣的疑問片語「到底是怎麼」，表示驚訝好奇他們是怎麼到那麼遠的地方的；How often（多常，問的是頻率不是方式）、How hard（多難）、How was that（文法上接不了did）都不合。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
四個選項都是 How 開頭，長得很像，而 How often（多常）是課本裡出現最多次的組合，很容易第一眼就選它。這一格先用形態刷一個，再用下一句的答案反推。
先看空格後面接什麼：did you get so far?——是一個倒裝的疑問句，所以空格要填的是帶頭的疑問詞組。How was that 先出局：它本身已經是一個完整的問句，後面接不了 did you get so far。剩下三個都是 How 開頭的組合，用下一句的答案分。Jack 回答 We rode bicycles there.（我們騎腳踏車去的。）——答的是方式，所以問的也是方式；How often 問的是頻率，先刷掉。再看語境：前一句 Jack 說他們甚至去了森林裡的原住民村落，John 的反應是驚訝——「你們到底是怎麼去那麼遠的地方的？」on earth 加在疑問詞後面，正是用來加強這種驚訝或不解的語氣。同一組的還有 What on earth（究竟是什麼）、Why on earth（到底為什麼）。
How often（多常）：問頻率，但答案給的是交通方式。How hard（多困難）：問程度，語意不合。How was that：本身是完整問句，接不了後面那一串。
How on earth …?（究竟是怎麼……）、What on earth …?（究竟是什麼）、Why on earth …?（到底為什麼）、manage to V（設法做到）、an aboriginal village（原住民村落）、so far（那麼遠）。
John: What was the weather like while you were camping? Jack: 26 It rained for a few days towards the end of our holiday, but mostly it was fine. We weren't able to visit the Rainbow Waterfalls as we planned, but…
John: 27
Jack: Well, apart from that, we did everything we wanted to—hiking, fishing and swimming. We even managed to visit an aboriginal village in the forest.
John: 28 did you get so far? Jack: We rode bicycles there. We also went to the beach several times. John: Did you take your bikes with you? Jack: No, we rented some at the nearby village.
John: Where did you stay 29 ? Jack: Oh, in a lovely valley, about three miles north of the National Park.
John: I remember when we went camping last summer. We forgot to take a can-opener along! Jack: 30 Do you know what happened to us? A goat came in our tent at night and ate most of our food!