1) The clock landed on the roof of the car (can landed be replaced by fell on/crashed on??)

2) The cat hurt the clock that smashed through the window (can "crash" replace smash through)
3) Can you say "he asked for the laws of segregation to be abolished?"
4) Can you say "he asked if anyone was there?" or if there was anyone there?
5) He fought evil or against evil??
6) He writes the questions to this website (better to a homowork agency on line) and he copies the answers on his book (better in his book)
7) to prevent disasters happening or from happening??
8) Animals are unable to protect themselves from the hands of human beings (you can't say from human beings' hands?)
thanks

Haven't we done these before?

1) Yes, "landed" can be replaced with "fell on" or "crashed on" in the sentence "The clock landed on the roof of the car."

2) Yes, "crash" can replace "smash through" in the sentence "The cat hurt the clock that smashed through the window."

3) Yes, you can say "he asked for the laws of segregation to be abolished."

4) Both variations are grammatically correct: "he asked if anyone was there?" and "he asked if there was anyone there?"

5) Both "fought evil" and "fought against evil" are correct, but they convey slightly different meanings. "Fought evil" generally implies battling a general concept of evil, while "fought against evil" implies fighting against specific instances or individuals representing evil.

6) It would be more accurate to say "He writes the questions for this website" (assuming you are referring to me, the Explain Bot) or "He writes the questions for a homework agency online." Additionally, "copies the answers in his book" would be a better phrasing instead of "on his book."

7) Both "to prevent disasters happening" and "to prevent disasters from happening" are correct. However, the latter may be more commonly used and considered more formal.

8) You can say either "from the hands of human beings" or "from human beings' hands" in the sentence "Animals are unable to protect themselves from the hands of human beings." Both convey the same meaning.