改为一般疑问句和否定局：I am a doctor.

改为一般疑问句和否定局：I am a doctor. He has a pencilbox.变一般疑问句和否定局 I am a student 改为一般疑问句和否定句 I am a student.改为一般疑问句 改为一般疑问句 I am a policeman I am at home today改成否定和一般疑问句,肯否回答,特殊疑问句 I have a good friend.变否和一般疑问句 I am a student (改为一般疑问句） i am reading a book.改为一般疑问句 I am Going to Take a Trip改为一般疑问句 i am reading a book.改为一般疑问句 英语 I am not a teacher 改为一般疑问句 I am a helpful girl.(改为一般疑问句) I am going to buy a bike.改为一般疑问句 I am a teacher.（改为一般疑问句） I am going on a big trip.改为一般疑问句 I am writing a report now.改为一般疑问句 I am a litter taller then her 改为一般疑问句