男性要警惕 生活中易被忽视的15个癌症信号(2)保健网

1、用所给动词的适当形式填空。

1．The Dinosaur World_____（build）in 1988． 

2．The dinosaur eggs_____（discover）in Sichuan Province．

3．What news_____（mention）in his speech yesterday？  

4．Has your computer ever_____（break）down？

5．We knew the boy_____（take）good care of by the nurse．

6．Where the mobile phone_____（make）？

7．All kinds shoes_____（sell）in this shop．

8．The students_____（ask）to answer some questions in English in class．

9．In the old days wood_____（use）for cooking and keeping warm．

10．Paper_____（invent）by Cai Lun．

2、下列句子由主动语态变为被动语态。

1．They made him work twelve hours a day．

2．Han Mei drew some pictures last night．

3．We often hang the wet clothes on the clothes line．

4．Yu Qiuyu wrote the book last year．

5．She swept the floor ten minutes ago．