Which class are they in?

Which class are they in? They are late( )class Which class are you in? Which class are you in? which students in your class have penpais?where are they from? what class are they in? What class are they having Which class are you in?怎样回答 翻译：Which class and grade are in? Which form and class are you in? They are interested ____English .,Now they are having ___English class in ,they ,three,class,are.组成一句话. they are in the same class They are in different class 改错 Are they in the same class 下面句子中的特殊疑问词用法错误,请改正 who's books are these?Are they yours?who's books are these?Are they yours?what boy is the tallest in you class?Which could come to help me? .--- What class are they in --- They are in _______ .A.Grade One ,Class Two B.Class Two,Gra the degree to which they are roasted.