Question

I don't know. Please answer me. ( passive voice )
6. Paper……………..in China many years ago.
a) was invented
b) is inventing
c) are invented
d) invents
7. One thousand copies of these books…………..last week.
a) was sold
b) were sold
c) are sold
d) sells
8. Air……………….of oxygen and nitrogen.
a) are composing
b) is composed
c) are composed
d) compose

9. I………………with the failure we have made this past week.
a) am worry
b) have worrying
c) am worried
d) worry
10. My money………………yesterday.
a) steals
b) is stealing
c) are stolen
d) was stolen

Answer 1

Explanation:

1. Was invented
2. were sold
3. is composed
4. am worried
5. was stolen

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Answer 2

Answer:

Explanation:

6)a