---I beg your pardon!
---Oh, you to me carefully. (just now)
| A．didn’t | B．haven’t listened | C．don’t listen | D．weren’t listening |
It was not until near the end of the letter ______ she mentioned her own plan.
| A．where |
| B．that |
| C．why |
| D．when |
It was only after he had read the papersMr. Gross realized the task before him was extremely difficult to complete.
| A．when |
| B．that |
| C．which |
| D．What |
An awful accident, however, _____occur the other day.
| A．does |
| B．did |
| C．has to |
| D．had to |
It was probably at that moment _____ I understood what kindness really was.
| A．that |
| B．when |
| C．which |
| D．what |
—What was it that caused the party to be put off?
—________ the invitations.
| A．Because Tom delayed sending |
| B．Tom delayed to send |
| C．That Tom delayed sending |
| D．Tom delayed sending |