Question

fill in the blanks with the correct modal verb.
select options below
when i was younger, i choose... hold my breath underwater for over a minute. now that im older, i think i be lucky to last thirty seconds without practice.
options: should, can, could
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Explanation:

1. For the first blank: The sentence "When I was younger, I ____ hold my breath underwater for over a minute" describes a past ability. "Could" is the past tense of "can" and is used to indicate past ability. "Should" implies advice or obligation, which doesn't fit here. "Can" is present tense, but the context is about the past ("when I was younger"), so "could" is appropriate.
2. For the second blank: The sentence "Now that I'm older, I think I ____ be lucky to last thirty seconds" is about the present ability (or lack thereof). "Can" is used for present ability. "Could" is past tense, and "should" is for advice/obligation, so "can" doesn't fit? Wait, no—wait, the second part: Wait, the user's image shows the first blank (the blue highlighted one) is the first choice. Wait, let's re - examine. The first blank: "When I was younger" is past, so we need a past - tense modal for ability. "Could" is past of "can" (ability). "Should" is for duty/advice. So first blank: "could". Then the second blank (the dotted one) would be "can't" but the options given for the first blank are "should", "can", "could". Wait, the first blank (the blue - highlighted "Choose..."): the options are "should", "can", "could". So the first blank: "could" (past ability).

Answer:

For the first (blue - highlighted) blank: could