将下列句子改为选择疑问句。 1.Theboyistall.Theboyisshort. _____theboytall__________? 2.HeknowsMr.Wang.HeknowsMr.Zhang. _____heknow_______________Mr.Zhang? 3.Heisold.Heisyoung.. _____he_______________? 4.Thisisacellphone.Thisisatelephone. _____thisacellphone_______________? 5.Isthisadoctor?Isthisanurse? _____this__________or__________? |