[ Personal Pronouns ]
The children are swimming at the pool. ________ played happily.
A. You
B. Us
C. Them
D. They

Random Topics:
To infinitive - GerundNoun PhraseMixed GrammarIndefinite ArticleThe Past SimpleGrammar - QuantiflierCan/CouldComparison and ModalsModal Verbs & Time PrepositionsModal Verbs for PossibilityOther quiz:
Grammar › ViewShe …… (fall) down into a hole last week.
A. falled
B. fell
C. fall
D. fool
Modal Verbs › View
Differentiate the function of the modal verb in the sentence: “You can borrow my car for the weekend.”
A. Ability
B. Permission
C. Obligation
D. Possibility