Question 26: ________ the phone rang later that night did Tom remember the appointment.
– The structure It is/ was not until… that… + s + V is used to emphasize a period of time or
the time when an event occurs. A period of time or time that can be described by a word, a phrase, or a clause.
Inversion: Not until + advooftime/clause + auxiliary verb + s + V + …
Eg: She didn’t get home until 11 pm
→ It was not until 11 pm that she got home.
Not I in til 11 pm did she get home. (She didn’t come home until 11 o’clock.)
We didn’t know the truth until the book was published.
→ It was not until the book was published that we knew the truth.
→ Not until the book was published did we know the truth. (It wasn’t until the book was published that we learned the truth.)
=> Answer C