Turn the following sentence into the passive form
Turn the following sentence into the passive form
1. Nam knew a lot of students in his class
2. We had a lot of difficulties in our work these days
3. I visited my classmates after I had gone shopping with my mother
4. People spent a lot of money on advertisement everyday
5. The children looked at the women with red hat
6. They met me two weeks ago at the bus stai
7. They told me that our mother was sick
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