题目内容：

Come()It's time for class A:in B：up C：on The teacher‘s office is on the()floor A：two B：one
C：second

优质解答

选C 快点!上课的时间到了
选C 老师的办公室在二楼

追问：

How many trees are there？A：NO，theyaren’t B：one C：on Now let me draw（） on it A：some thing B：There are eihht C：somethings -re they dogs（）A：They are cats B:Ther five dogs C：Yes，they are

追答：

How many trees are there？A：NO，theyaren’t B：one C：on 选BNow let me draw（） on it A：some thing B：There are eihht C：somethings 选C-re they dogs（）A：They are cats B:Ther five dogs C：Yes，they are选C