【单选题】The language of the Sumerians, __________, is unrelated to any known language. A. which remains obscure origin B. whose origin remains obscure C. whose remains obscure origin D. who is ...
【简答题】句型转换。 1. She is fif years old . (对画线部分提问) ________ ________ is she? 2. We have an English party every month. (改为一般疑问句) ________ ________ ________ an English party every month? 3. My birthday is Ju...