Choose the option where both grammar and
vocabulary are correct:
I. “We looked for witnesses, but the
neighbors had not seen Tootles in the
act.”
II. “If Todd had not included his own
name in the message, we would had no
idea who was behind it.”
III. “I have knew Victoria for a long time,
I can assure that she will help.”
IV. “The new drug will have been
implemented within the
pharmaceutical companies by this
year.”