For the last few days i’ve been quite sick. i’ve barely gotten out of bed. i’ve just been lying around coughing and sneezing. however, when my grandma and grandpa heard that i was sick, they came over at the drop of a hat.
what is the meaning of the underlined idiom?
instantly. < this is the right answer
slowly
hesitantly
successfully

yes yes it does !

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i have a basic answer but if you want a more in depth

the correct answer is option d. none of these. it is noted that options a, b, and c share the same content.

despite the valid answer provided at the last sentence of each of the options, a question/answer format shouldn't include humourous themed responses such as "you bet your thermal pj's we do." - unless of course, the answer is carried out in an informal environment. this could be replaced with a simple "yes" or "it is necessary".

the question should be re-phrased to a more appropiate syntaxis. instead of "do we need the greenhouse effect? ", it should be written as "is the greenhouse effect necessary? " in order to give it a general scope, instead of limiting the answer to the needs of "we" the humans.