Solution:
'Trust in' means 'to have a strong belief in the goodness or ability of (someone or something)'. Hence it makes the sentence meaningful.

Solution: Not available. Please sign up to discuss it in grabSTUDY forum.

Solution: Not available. Please sign up to discuss it in grabSTUDY forum.

Solution:
If you 'hand in' something such as homework or something that you have found, you give it to a teacher, police officer, or other person in authority. Hence it makes the sentence meaningful.

Solution: Not available. Please sign up to discuss it in grabSTUDY forum.

Solution: Not available. Please sign up to discuss it in grabSTUDY forum.

Solution:
Here, the sentence means that his views did not agree my views. 'With' is used to show dissimilarity in this sentence.