单项选择题
A."is most important" B."is included" C."is considered" D."is numbered"
A.William Normandy conquered England B.Anglos, Saxons and Jutes came to Britain C.Scandinavians lived in the northern and eastern parts of the country D.The Romans stayed in Britain
A.open your mouth wide B.take a deep breath C.blow into his lungs D.do’ all of the above