初中英语基数词选择题

My mother will be       years old next week.I'm planning to buy a gift for her       birthday.

A．fourty；fourtiethB．forty；fortieth

C．fourty；fortiethD．forty；fourtieth

He got____ birthday cakes on his ____ birthday.（　　）

A．	second；fifteen	B．	two；fifteen
C．	second；fifteenth	D．	two；fifteenth

﹣﹣﹣We should try to devote（献身于）ourselves to our country like Yuan Longping.

﹣﹣﹣I think so.He still worked on the research into agriculture（农业）at the age of _________.（　　）

A．	eighties	B．	eightieth
C．	eighty	D．	eighty﹣year﹣old