____ that caused him to serve dinner an hour later than usual.
| A．It was we being late | B．It was our being late |
| C．It was we were too late | D．It was because we were late |
.Because of my poor memory, all ____ you told me has been forgotten.
| A．that | B．which | C．what | D．as |
The old house we paid a visit _____ at the top of the hill.
| A．standing | B．to stand |
| C．to standing | D．to stands |
If I’m mistaken, _________ you are mistaken too.
| A．so | B．and | C．or | D．不填 |
The result of the study was published last week in New York, a ______ magazine in America.
| A．respect | B．respecting | C．being respected | D．respected |
She read the letter through before sending it, ______ for spelling mistakes.
| A．checked | B．to be checking | C．checking | D．having checked |