— Excuse me, have you seen _______ umbrella here?— Yes. Is it _______ beautiful blue one? I saw it here just now.
A：an, the
B：an, a
C：the, the
D：the, a
电池是一种将化学能直接转化成电能的装置，其优点是：既____，又能____。但废弃电池不能乱扔乱放，因为____和____对环境会造成严重污染。废弃电池的处理已成为一个重要的社会问题，请你对苏州市政府提出一个处理方案：____.
We are playing football. Come and _____________ us.
