___ we have come ,Let's stay and enjoy it.A.As B.Since选哪个呢?请详细说明原因!as ,since 之间有什么细微地区别?

Come and play with us!We have basketball,foot-balls and ___ We'll have a school ___.Come and join us怎么填 英语句子 对画线部分提问If we have the party today ,they won't come(they won't come打了画线）what ___ ___ if we have the party today?填空 you needn't come,___you?you need to come,___you?we hardly have to get up early,___we?leave me alone,___you?no one was hurt,___ ___?ther is no doubt about it,___ ___? 1.We are in different schools.(同义句转换）We ___ in ___ ___ school.2.Do the boys have oranges?(改为单数句)___ the boy ___ an orange?3.We come from theU.S.A.(同义句转换)We ___ ___ theU.S.A.4.She has a big head.(改为否定句)She ___ We have sweater ___ ___ ___ a$50. We have salad.We have orange juice,too.=We have salad___ ___ ___ orange juice. tomorrow we'll have an english party .will you please ______ our english teacher ___?A.invite ; come B.invite ; to come C.to invite ; come D.to invite ; to come We have technical problems Please come back Plese come back We have tehnical problems 英语翻译We also have ___ ___ ___ ___ ___drinks and ___ ___. 句型转换And we have funAnd we ___ ___ ___ ___ We have sweaters in all ___ (颜色). We have two ___（party) this year. We ___ (have) exercise a strong body? we have a problem ___ the computer We have ___ lessons at school. We have ___ ____ _____(用完)sugar