All kinds of juice taste good.

[Alice Chu]

I, an unqualified English teacher, wrote the following sentences. Please correct them.

1) A pair of jeans isn’t (or aren’t) enough for me.
2) There is (or are) a pair of glasses on the desk.
3) A bowl of noodles are (or is) enough.
4) A box of matches are (or is) enough.
5) All of the juice tastes good.
6) All kinds of juice taste good.

 

[Tarheel]

A pair of jeans is one item. So is a pair of glasses. So is a bowl of noodles. So is a box of matches.

 

[emsr2d2]

The clue in sentences 1 to 4 is the use of the indefinite article "a".

1. A pair
2. A pair
3. A bowl
4. A box

It doesn't matter what comes after those two words.

 

[Charlie Bernstein]

And notice that #5 is unlikely. How could one part of the juice taste good and another taste bad?