c. has been dancing
Rationale: The present perfect continuous tense 'has been dancing' is used to describe an action that started in the past and is still continuing in the present, emphasizing the duration or continuity of the action. In this context, 'Look!' suggests an ongoing action visible at the moment of speaking.
b. was revising
Rationale: The past continuous tense 'was revising' is used to describe an action that was in progress at a specific time in the past ('yesterday'). It indicates that the revision was ongoing at some point during that day.
c. the most funny
Rationale: To form the superlative of an adjective like 'funny' (which ends in -y preceded by a consonant), we change the 'y' to 'i' and add '-est' (funniest). However, when comparing among more than two items, we use the superlative form. With longer adjectives or when the superlative form sounds awkward, we use 'most'. For 'funny', both 'funniest' and 'the most funny' are grammatically acceptable, but 'the most funny' is often preferred in contemporary English, especially when emphasizing the degree of funniness. In this case, it is a superlative degree as it refers to the boy in the entire class.
c. chemist's
Rationale: Aspirin is a type of medicine, and a chemist's shop (or pharmacy) is where one buys medicine.
a. pinch
Rationale: 'Pinch' refers to a small amount of a substance, typically taken between the thumb and forefinger, which is appropriate for adding seasoning like salt.
B.tall, sınall, full
Rationale: This option provides a plausible combination of physical descriptors. 'Tall' describes overall height. 'Small' ears can be a common descriptor. 'Full' lips is also a common description. The other options might present less common or potentially contradictory combinations (e.g., 'small' friend with 'long' ears).
b. is made
Rationale: This is a passive voice construction in the present simple tense. Paper is the object that is acted upon (made), and the action is general and true. The passive voice is formed with 'be' + past participle.
c. earthquake
Rationale: An earthquake is defined as a sudden violent shaking of the ground, typically causing great destruction, as a result of movements within the earth's crust or volcanic action.
c. global warming
Rationale: The statement describes a gradual increase in Earth's temperature, which is the definition of global warming.
a. on cloud nine
Rationale: 'On cloud nine' is an idiom that means to be extremely happy or delighted, which is a fitting emotion after successfully passing a test.
b. boarded
Rationale: To 'board' a plane means to get on it. The past perfect 'had boarded' indicates an action completed before another past action (the plane taking off).
a. may
Rationale: 'May' is used to ask for permission or to make a polite request. In this context, asking to ask a question is a request for permission.