Haven’t seen Lucy recently What’s happened?—Oh, it’s more than two months ______ she worked here

下列各选项中，没有语病的一项是（ ）

Why don’t you buy a scarf—That’s not ___________.

increasing number of middle school students go abroad for further study at their own ________, trying hard to realize their dreams.

esident of the World Bank says he has a passionfor China, _______ he remembers starting as early as his childhood.