Which sentence is a simple sentence a when the monster arrived the children screamed or be when the children heard strange sounds they hid under the bed or see the enormous hairy monster with sharp teeth ground at the young children or d the children will not return to the force after the monster attacked calvin

The correct answer is ( c ) “the enormous hairy monster with sharp teeth ground at the young children”. It is a SIMPLE SENTENCE as it has the basic elements: a subject and a verb. It can stand alone, that is to say, it does not depend on other clauses.

explanation:

it refers to the definition of full-contact sports, where the condition is that the sport must have athletes must "purposely collide with each other

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