three,five,fifteen,three,twelve,thity-one,fifty-five,ninety-nine 写出下列基数词的序数词her birthday is september 5th(对画线部分提问)———————how old is bill?(改为同义句)this skirt is the woman s(改为复数形式)s

________eighty-three plus fifteen? Ten plus five are fifteen five fifteen同义词1分钟 I haven't been three for five years ten-five three-ten是什么意思···there are____bags in the roomten-five B fifteen C fiveteenthere are____in our schoolA thirty students B twenty student C three-ten students 这个是啥么意思 ten十ten=?ten十twenty=?thirty-five十twenty-ten十ten=?ten十twenty=?thirty-five十twenty-five=?fifteen十forty-two十three=? How much is one kilo of pears?(同义转换)How much .one kilo of pears .The boy next to me is David.（就next to提问)..is David?Fifteen point five minus three point two is twelve point three.(就twelve point three提问） ..fifteen point five mi five past three, five-three=（ ） twenty-five to three three five year periods Three seventy-five 是多少? Three fives and five It's three fifteen now.同义句 Ten plus five is A fifteen B thirteeTen plus five isA fifteen B thirteen C fourteen I want five apples.They are three yuan.I also want ten bananas,five pears and two watermelons.That's fifteen yuan.为什么上句主语用的是they,而下句则用that,这里的单复数怎样来判断? five nine five 0 two two three three What is five and three?