Explanation

The correct preposition after "care" in this context is "about."

"Care about" means to be concerned or worried regarding something.

Explanation

"During" is used to indicate something happening throughout the time of an event.

Taking notes happens while the lecture is in progress, so "during the lecture" is correct.

Explanation

"Bread and butter" is treated as a single combined item (a food staple).

Therefore, the singular verb "is" is used to indicate its essential nature.

Explanation

"Any" is used in negative sentences to refer to an unknown quantity.

Since he couldn't find milk, "any" correctly fits the negative context.

Explanation

"A" is used before a singular, countable noun when mentioned for the first time.

"A letter" fits because it refers to one unspecific protest letter.

Explanation

"Either" refers to one of two options, so it takes a singular verb.

Therefore, "is" agrees correctly with the singular subject "Either answer."

Explanation

"As well as" introduces extra information that modifies the main subject.

The verb agrees with the main subject only, which is singular ("The player").

Therefore, the singular verb "wants" is correct.

Explanation

"The environments" refers to specific natural settings already known or implied.

Use of "the" is proper when talking about general threats to particular environments.

Explanation

This sentence belongs to Present Indefinite Tense. 

Active voice:  This footpath is used all the time

Passive voice: People use this footpath all the time.

Note: Do not need use subject in passive voice when it is understood in the sentence. 

Explanation

Could is a modal verb.

Could can be used for polite/formal request.

Could I have some more tea please?

کیا میں مزید چائے پی سکتا ہوں؟