________ the machine begins to work, you can’t stop it _____.
| A．While; soon | B．For; right away | C．Once; at once | D．Until; immediately |
He hurried to the railway station only that the train had already left.
| A．to be told | B．to tell | C．told | D．telling |
–Why does she always ask you for help?
--There is no one else , is there?
| A．who to turn to | B．she can turn to | C．for whom to turn | D．for her to turn |
You’ll find this book of great to those who are learning English.
| A．usefulness | B．value | C．price | D．cost |
. If you take the pills three times a day, it should your headache.
| A．prevent | B．cure | C．treat | D．recover |
. After I returned to my hometown, I was pleased to find that it had a new look.
| A．taken off | B．taken after | C．taken in | D．taken on |