Difference between "much", "many", "a lot of", "lots of"

Much - Many
Much and many are used in negative and interrogative sentences. Much with uncountable nouns. Many with countable nouns.

• Kevin don't have many friends.
• I don’t have much free time. 
• Not many of the students understood the lesson. 
• Are there many people at meeting?

Much and many are used in affermative sentences with: so, too.

• There are so many ways to write composition.
• Cinese people eat too much rice.

Much is used as adverb with: very, so, too.

• I like chocolate very much.
• They eat too much.

A lot of / lots of
A lot of / lots of are used in affermative sentences with both uncountable and countable nouns.

• There was a lot of (lots of) space. 
•  I ate lots of cookies after dinner.

Difference between "bright", "shine", "glare", "glow", "flicker", "sparkle", "glitter", "glisten"

Bright
"Bright" is an adjective. It means full of light.

• The overhead light is too bright.

Shine
"Shine" is a verb. It means giving bright light.

• The sun shining through the clouds.

Glare
"Glare" is something that shines with very bright to make it difficult to look at.

• The glare on the water is very bright.

Glow
"Glow" is a verb. It means giving bright light and heat without flame.

• The coals glowed in the fireplace.
• The lamp glow in the dark. 
• Her face was glowing with embarrassment.

Flicker
"Flicker" is verb. It means shining with brief interruptions.

• The lamp kept flickering on and off.

Sparkle
"Sparkle" means shining brightly with small flashes of light.

• The sky sparkled (verb) with brilliant stars. 
• The sparkles (noun) of light on water

Glitter
"Glitter" is verb and noun. It means shining with bright points of light.

• The water glittered in the sunlight.

Glisten
"Glisten" is verb. It means shining with light reflected on a wet surface.

• Her eyes glistened with emotion.
• The road glistened after the rain.

Difference between "must" and "have to"

Must
"Must" suggests that it is the speaker who has decided that something is necessary.

• I must clean the house before mum gets back. I want her to find it all neat and tidy.

Have to
"Have to" suggests that somebody else has imposed the decision.

• Sorry, I can't come out now. I've to tidy up my room before I'm allowed out.

Modal verbs: use of Must

- To say that you believe something is certain.
   [ must +  infinitive (without to) ]
   [ must + have + past participle ]

• You've been travelling all day. You must be tired. 
• You must be worried that she is so late coming home.
• I didn't hear the phone. I must have been asleep.
• I've lost one of my gloves. You must have dropped it somewhere.

- To say that you think something is essential or necessary.
   [ must +  infinitive (without to) ]

• I must buy flowers for my mother. Tomorrow is her birthday
• I must stop smoking.

Difference between "advise" and "warn"

Advise
"Advise" has the idea of giving someone advice or useful information to help them make a decision.

• I advise you to give up/stop smoking.

Warn
"Warn" is to tell someone in advance about a possible risk or danger.

•  I warn someone about the dangers of smoking.

Phrasal verbs: Look to

Meaning:

1) hope, seek (to do something).

Examples:

- He look to become a magistrate.

Phrasal verbs: Work out

Meaning:

1) find, create (a solution).
2) happen, develop, end (in a particular way).
3) train, exercise.

Examples:

- We're still trying to work out the difficulties. 
- Despite some difficulties, everything worked out well. 
- I work out regularly to keep fit.