As it was a fine day,they decided to go fishing.为什么用as?为什么用as,而不是if

yesterday,we went out for a walk sa a fine day it was a fine day it being a fine day for it was a f____yesterday,we went out for a walk A as a fine day B it was a fine day C it being a fine day D for it was a fine day 哪个对,其余的怎么错的 --yesterday ,we went out for a walk.A.As was a fine day B.It was a fine day C.It being a fine day D.For it was a fine day As it was a fine day,they decided to go fishing.为什么用as?为什么用as,而不是if It was a fine day yesterday fiIt was a fine day yesterday fine day 画线 对画线部分提问 It was a fine day. Lily was verry什么意思 _____,the children went to the dayA.It was a fine day B.Being a fine day C.It being a fine day D.Because the fine day It was a fine day.翻译成中文 was it a fine day last Sundy 三克油 it is a fine day. it a fine day today. It was a fine day yesterday.改为感叹句( )( )weather it was yesterday It was a fine day yesterday.改为感叹句What ( )( )weather it was yesterday 15.（ ）,the children went to the park.A.It was a fine dayB.Being a fine dayC.It being a fine dayD.Because the fine day ( ),the children went to the park.A.It was a fine day B.Being a fine day C.It being a fine da It was a fine day yesterday对a fine day 这个划线部分提问（ ）（ ）the （ ）yesterday it was a fine day yesterday怎么问把a fine day 划线时怎么提问呢? it was fine day 划线部分是 fine It was _____ fine weather that day that all of us had a good time in the country.A.so B.such C.because D.just as