欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

(   ) 7. Look at the stars. Can you count them clearly?

—No. There are      stars in the sky.

   A. two billions   B. two billions of

   C.  billions of   D. two billion of

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語(yǔ) 來(lái)源： 題型：

5. on,Mars,discovered,have,they,life(連詞成句)

                        ?

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

(   ) 2. Have you decided whether to go there or not?

—No，I haven’t decided     .

   A. already   B. just

   C.  ever   D. yet

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

Tony： Hello，Lucy. I haven’t seen you for several hours. Where have you been?

Lucy： Hello，Tony. 1.        And I have found some information about the universe.

Tony ： Really? Would you like to tell me some? Lucy ： Of course. What do you want to know?

Tony： Well. 2.       

Lucy： Millions of years.

Tony： Wow!So long. 3.      

Lucy： Not yet. But they have discovered water on Mars.

Tony： That sounds very interesting. Have they found life on Mars?

Lucy ： No，they haven’t. And scientists have already found that there’s no life on the moon.

Tony： 4.      

Lucy： Yes，that’s right. Oh,I want to return the book about journeys to space to Jack,but I can’t find him. Where’s he,do you know?

Tony： 5.        You can find him there.

Lucy： Thanks a lot.

   A.

So far there’s life only on earth?

   B.

How long has there been life on earth?

   C.

I have gone to the library.

   D.

So have scientists found life on other planets?

  E.

He has been to the space museum.

  F.

I have been to the museum.

  G.

He has just gone to the school library.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

(   ) 2. —Dave,we will leave in  10 minutes.  Are you ready?

—No,I      our guide book and towels yet.

   A. don’t pack   B. didn’t pack

   C.  have packed   D. haven’t packed

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

(   ) 9. Lucy is shy. She would not invite her classmates       dancing with her.

   A. practise   B. practises

   C.  practising   D. to practise

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

5.無(wú)法想象宇宙有多大。

It is      to imagine           the universe is.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

1. Have you finished     (read) the book, Bob?

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

2. He has a        (頭痛) and isn’t feeling comfortable today.

查看答案和解析>>

同步練習(xí)冊(cè)答案