English Grammar and Usage

 'Great','real' and 'just' are adjectives. 'Greatly' describes the extent of the worry.

  The adverb that best describes the degree of the speed is 'quickly'.

 'Senseless' acts as an adverb here and modifies the lying.

'Late' is the correct adverb. 'Rather' further modifies the adverb 'late'. 'Lately' means a short time ago.

 'Ago' is used with reference to time. 'Back' refers to a movement in space (with some exceptions).

"Am" indicates use of present tense. But "last week" means past tense will be used. As "was" is used with "I" so "was" is correct answer.

"Next summer" indicates future. Hence, "will" is correct answer.

It indicates continuous tense (1^st form of verb + ing) and one of them (child or mother) will go. So, clearly it's singular. Hence, the correct answer is "is".

As "today" indicates present tense and "parents" plural. Hence, "are" is the correct answer.

"Physics" is one subject and is singular. Hence, the correct option is "is".

Where two subjects are joined by the conjunction 'or', the verb will connect with the second subject. Here the second subject is the plural 'twins'.

"A pair" is considered as singular. "Pairs" as plural. Hence, "is" is the correct answer.

As the main verb here is "continue", but not "seeing". "Seeing": is a type of verb known as a gerund. A gerund is an - ing word that acts as a noun. So with the 1st form of the verb (continue) "Did" is used to ask question.

As the sentence indicates past tense ("last year) so  "did" is used before a verb (except be, can, may, ought, shall, will) in questions and negative statements. Hence, "did" is the correct answer.

In direct form of narration, the reported speech is put within quote marks and it is separated from reporting work through a comma (,). The question mark is put after the reported speech. The indirect form of narration does not use question mark.