No sooner ______ on board the train than it______ to move.
| A．did he go; had started | B．he went; started |
| C．had he gone; started | D．he had gone; had started |
She might have been in time for the train, but she _______late.
| A．started | B．has started |
| C．was to start | D．had started |
____ you want to remember its usage, you’d better make a sentence with the new word.
| A．Unless | B．While | C．Now that | D．Even if |
I _____ on a sofa because my grandparents have come for the weekend.
| A．slept | B．was sleeping | C．have slept | D．am sleeping |
I would rather buy a house in the suburb than ____ in the city.
| A．it | B．one | C．this | D．that |
He feels that his health ____ owing to ____ a long walk every other day.
| A．is improving; taking | B．has been improved; being taken |
| C．improved; taken | D．is improving; have taken |