Where I can use 'too much' and where 'a lot'?

[Gelly]

English Idioms and Expressions, Elementary Level

ESL/EFL Test #2 "Take it in", question 5

Don't overdo it because you're very tired.

(a) do a lot
(b) do a little
(c) do too little
(d) do too much

English Idioms and Expressions, Elementary Level

ESL/EFL Test #2 "Take it in", answer 5

Don't do too much because you're very tired.

Correct answer: (d) do too much

Your answer was: incorrect
Don't do a lot because you're very tired.
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why i cant use a lot in this que?
where i can use too much and where a lot?

Gelly

[Alan]

Hi Gelly,

The important word in the test question is overdo meaning do more than you should or do too much. Too much suggests in excess of what is normal as in:

There is too much sugar in this tea as it tastes too sweet.

A lot simply means a large quantity as in:

I like a lot of sugar in my tea because I like it to taste very sweet.

Alan
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English as a Second Language
You can read my ESL story Present Simple

[Lily_Vu]

what is the diffrentce between a lot of and much? How can I do them?
"A lot of" is your hoppy, and "much" is vague?