Select the most appropriate option to fill in the blank.

The park is a/an ______ place to stroll and exercise.

ideal

The most appropriate option to fill in the blank is ideal.

The word ideal means perfect or perfectly suited for a particular purpose. In this case, the sentence is saying that the park is a/an ideal place to stroll and exercise. This means that the park is perfectly suited for the purpose of strolling and exercising.

The other options are not correct.

• Unopen means not open. It cannot be used in this sentence because it does not describe a place that is suitable for strolling and exercising.
• Doubtful means uncertain or unsure. It cannot be used in this sentence because it does not describe a place that is suitable for strolling and exercising.
• Fussy means difficult to please or demanding. It cannot be used in this sentence because it does not describe a place that is suitable for strolling and exercising.