1. If I didn't have to help my mom with something, I would come to the party

2. If Minh ha got a map, he could find the way

3. This garbage should be taken to the garbage dump soon 

4. Linh's report was written last week 

5. Dinner is being prepared in the kitchen by my mother at the moment

6. If I knew enough about the machine, I could mend it myself 

Chúc bạn học tốt !!!!

1) I can't come to the party because I have to help my mother with something.

→  If I didn't have to help my mom with something, I would come to the party.

2) Minh can't find the way because he hasn't got a map.

→ If Minh ha got a map, he could find the way.

3) Someone should take this garbage to the garbage dump soon.

→This garbage should be taken to the garbage dump soon .

4) Linh wrote her report last week.

→Linh's report was written last week .

5) My mother is preparing dinner at the moment.

→Dinner is being prepared in the kitchen by my mother at the moment.

6) I don't know enough about the machine, so I can't mend it myself.

→ If I knew enough about the machine, I could mend it myself .