Last week, our cat gave birth to a litter of ...

★ Adjective Clause and Adverb Clause

Last week, our cat gave birth to a litter of kittens, but we didn’t know where ________.

A. is our cat

B. our cat is

C. our cat was

D. was our cat

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She needed to find new homes for them, but she didn’t know ________ .

A. whom should she ask

B. whom she ask

C. whom she should ask

D. whom she asks