Are these correct? A lof the, plenty of the?

[Mrdmrd]

a lot of the evidence was lost.
plenty of the evidence was lost,
a lot of the film was worth watching,
plenty of the film was worth watching,

plenty of the workers are eager,
a lot of the workers are eager,

None of the evidence was lost.
none of the film was worth watching,
Is there something wrong with these usages?
thanks alot...

[Conchita]

All your sentences seem grammatically correct to me. However, I wouldn't say 'plenty of the film was worth watching'. It sounds a bit awkward somehow. I prefer 'a great part of the film'. But this is only my personal opinion and preference.

[Pamela]

[Mrdmrd]

I would realy be grateful to you if you might help me...
I really need your help...

[Pamela]

As you know "a lot of"and "plenty of" are used both with countable and uncountable nouns.But there is a tendency to use "plenty of "mainly with uncountable nouns. It's often used in informal speech also.

[Chocolatee]

I agree. Using "plenty of" sounds awkward. This is especially true when the phrase is used at the beginning of the sentence. I think it will sound better if it is used at the end of the sentence.

[Mrdmrd]

what about the ''the'' in plenty of the, alot of the,lots of the.Is ıt correct if we use the with them?

[Conchita]