Multiple choice

We were all sure the old man _____ poison in the candy.

  1. put

  2. putted

  3. had putted

  4. had put
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The past perfect tense 'had put' is required here because the action of putting poison occurred before the state of being sure about it. 'Putted' is not a standard English verb form.

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