Topic: Right Form of Verb,

Best Answer Explained in Below-:

The sentence "While I (play) in the field, I saw a dead cow" describes two actions happening simultaneously. To convey that one action was ongoing when another occurred, we typically use the past continuous tense for the action in progress and the simple past tense for the action that interrupts or happens during it.

In this context, the appropriate form to use for the ongoing action is "was playing." This tense indicates that the action of playing was happening over a duration of time in the past. The correct sentence would read, "While I was playing in the field, I saw a dead cow."

Choosing "playing" (option A) is incorrect because it lacks the necessary auxiliary verb "was" to indicate the continuous nature of the action. "Played" (option C) suggests a completed action, which does not fit the context of simultaneous actions. "Were playing" (option D) is also incorrect because it incorrectly uses the plural form for "I."

Thus, "was playing" is the correct choice as it properly sets up the ongoing action that leads into the observation of the dead cow, emphasizing the simultaneity of the two events.