题目内容
桯ow old _____ your father? 桯e _____ forty．
A．are；are B．are；is C．is；is
桯ow old is your son?
梍_______ . We had a special party for his ________ birthday last Sunday.
A. Nine; nine
B. Nine; ninth
C. Ninth; ninth
D. Ninth; nine
梍_______. We had a special party for his ________ birthday last Sunday.
