1. Should they sell food on the sidewalk?

⇒should the food be sold on the sidewalk?

2. Nobody can answer the question correctly.

⇒the question could be answered correcly by nobody
3. Mr. Minh took the children to the zoo last week

⇒the children were taken to the zoo last week by mr.minh

4. They will open a new shopping mall in the neighborhood.

⇒a new shopping mall will be opened in the neighborhood

5. The government spent billions of dollars on cancer research last year.

⇒billions of dollars on cancer research were spent by the gorvermeny last year

1. Should the food be sold on the sidewalk?

2. The question could be answered correcly by nobody
 3.  The children were taken to the zoo last week by mr.minh

4. A new shopping mall will be opened in the neighborhood

5. Billions of dollars on cancer research were spent by the gorvermeny last year

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