О Which of the following sentences contains a signal word that emphasizes important information?
O Just as the teacher said they would, the chemicals in the bottle started smoking and bubbling as soon as they were mixed.
O Toby is going to the store earlier than we thought, so he'll be home in time for dinner.
O A key feature of the new software is that it will be much easier to install than the older version.
None of the choices are correct.