Question

Rewrite the sentences in the passive form

Answer 1

Answer:

3.A lot of local gardens is been invaded by Japanese knotweed.

4. Starters have already been served.

Answer 2

2) The knife was left on the table by someone.

3) Japanese knotweed invaded a lot of local gardens.

4) The starters had been served.

I think this should be what you needed :)