We had hoped to catch the 10：20 train, but _____ it was gone.
| A．found | B．had found |
| C．would find | D．would have found |
--- Robert is indeed a wise man.
---Oh, yes. How often I have regretted_______his advice!
| A．to take | B．taking | C．not to take | D．not taking |
If you think that treating a woman well means always_______her permission for things, think again.
| A．gets | B．got | C．to get | D．getting |
It is worth considering what makes“convenience”foods so popular, and ______better ones of your own.
| A．introduces | B．to introduce | C．introducing | D．introduced |
The Science Museum, ______we visited during a recent trip to Britain, is one of London’s attractions.
| A．which | B．what | C．that | D．where |
Start out right away, _____you’ll miss the first train.
| A．and | B．but | C．or | D．while |