第20题: [简答题] {{B}}Qusetions 11-15{{/B}} Answer the following questions using {{B}}NO MORE
THAN THREE WORDS AND/OR A NUMBER{{/B}} for each answer.
How many London underground lines are there 参考答案:12/twelve 答案解析:[听力原文]11-20
Presenter: Welcome to this latest lecture on living in London. Today,
we’re going to