—Where are your brothers?
— in the classroom now.
A:He is
B:There are
C:They are
D:We are
读某河流干流和流域范围示意图,回答下列各题。
— Bill, can I get you anything to drink?
— Thanks.
弯曲 神采奕奕 开始
结束____ 伸直____ 垂头丧气____