三、根据问句选答句,将其序号填入题前括号内。
( ) 1.What's the time?
( ) 2.What's your number?
( ) 3.What's your mother?
( ) 4.What's eight and nine?
( ) 5.What class is he in?
A.I'm number five. B.It's seventeen.
C.It's seven o'clock. D.She's a doctor.
E.He is in Class Four,Grade Five.