The reason is _ he is ill.A.thatB.becauseC.whyD.how为啥

The reason is _ he is ill.A.thatB.becauseC.whyD.how为啥 :I love he heart is not in the -_-|| Read the passage fast to _ _ _ _(获得大概意思)I like meat _ _./=__.(大体上)_ _(总的说),he is very good. 关于英语单词reason的用法I came across a problem on the word reason.1.(The reason why.is because.) Is this sentence pattern grammatically right?(语法上正确) 2.(This is the reason that he is late/This is the reason he is late.) Is this The reason why i came here is _ you have made a serious mistake.A.whatB.that This book is _(I)._(your) is on the desk.The boy with big eves is_ (she)son.This is _ (he) mirror._(I) is in my bag.He _(visit) his grandparents yesterday. May is prettier than any of her sis ters.=May is _ _ _ _ sisters.He is taller than me.=Iam _ _ _ him.=I am _ _ _ _ him.你多高?_ _ are you?=_ your 我一米六高I am 1.6m _=I am 1.6m _ _楼高一千米The _ _ the _ is 1000 meters. 改错:the reason why he is always late for class I don't know the reason -------- he cried Athat Bwhy 1.除了猫之外,我还喜欢狗I love dogs _ _ _ cats2.It seems that he is happy(改同义句）He _ _ _ happy3.Jim is twelve.Simon is twelve,too.（合并一句）Jim is _ _ _ Simon4.The big suitcase _ (值）$3005.多有趣的一部电影啊!_ _ reason _he failed is _ he was too careless.用恰当的连词填空.怎么填? 同义句转换He run as fast as possible to catch the car. He ran _ _ _ _ _(五个空）to catch the car.He run as fast as possible to catch the car.He ran _ _ _ _ _(五个空）to catch the car.I hear it is cold from January to December in Canada. One reason _ he told me for his being late is _ he didn't catch the early bus.A.that;why B.why;because C.why;that D.that;that One reason _ he told me for his being late is _ he didn't catch the early bus.A.that;why B.why;because C.why;that D.that;that it is because of the reason that I am tiredit is for the reason that i am tiredwhich is right what is the reason The reason ---I came here is to get you help The busier he is,_(happy)he is.