we are all very excited,分析一下句子语法,为什么用 be done

we are all very excited,分析一下句子语法,为什么用 be done We are all very excited.___are very excited We are tired,but we are all very excited. we are all very excited and are looking forward to the Olymp all the peoples are very excited. All can be done. All must be done.合并为一个句子怎么写? 为什么? 用what或者who合并句子all can be done.all must be done All clothes we have are on sale 能分析一下这句话的语法吗? 再加意思 合并句子all can be done.all must be done All the students are very excited.对划线部分提问 all my books are very excited哪里错了,改正 All the peoples are very excited.有什么错?