我有一个问题：the sun is a ( ) in the solar system A、star B、planet C、moon 问应填那个?英语老师说是B,我认为是A,因为太阳不是行星啊,但老师就说star更没可能,请问是哪一个?

我有一个问题：the sun is a ( ) in the solar system A、star B、planet C、moon 问应填那个?英语老师说是B,我认为是A,因为太阳不是行星啊,但老师就说star更没可能,请问是哪一个? 关于it is句型的问题it is pleasant lying in the sun 与it is pleasant to lying in the sun有何区别? The sun is not a planet. The sun is bigger than the earth.是否有误?如有,请帮我改正 the sun is _______. The sun is the sun is always the sun is shining? Where is the sun? it is a fine day.the sun is _____________ shape是形状的意思吧,是平面的还是立体的?教科书上有这样的句子：(1)——What shape is the sun?——The sun is a circle.(2)——What shape is the ball?——The ball is a circle.可以说“球是一个圆形”吗?很晕呀 it is a sunny day,the grass ----(like)the sun. 一个英语语法选择题_____is the center of our planetary system was a difficult concept to grasp in the Middle Ages.A.It is the sun and not the earthB.Being the sun and not the earthC.The sun and not the earthD.That the sun and not the earth为 the sun is the moon. The sun is a great group of stars. the sun is（）round like a ball NO,the sun is a star翻译英语, There is ________s'' in the word sun''(a,an)