单项选择题
()has the 19th-largest economy in the world.
A.Shanghai B.Switzerland C.Saudi Arabia D.The Bay Area
单项选择题 What’s the meaning of “wax and wane” ?()
判断题 When we land how can we get our stroller back?译文:等我们下机后, 我们怎样取回婴儿车呢?
判断题 I lost my transit card. 句中划线短语的意思是“过境卡”。