Question

【題目】A high official will come and explain ______ what the country has done to ensure to make the Football World Cup the best-ever game.
A.in length
B.at length
C.by length
D.to length

Answer 1

【答案】B
【解析】at length指“詳細(xì)地”，此處指這位官員將對國家所做的事情做一個(gè)詳細(xì)的解釋。 in length意為“在長度上”；by length指以長度為度量；沒有to length這種搭配。 故選B。