Some pirates(海盗)appeared, so they ________ change their route.
| A．must |
| B．should |
| C．have got to |
| D．ought to |
The manager ______ the workers how to improve the program since 9 am.
| A．has told | B．is telling | C．has been telling | D．will have told |
I'm going to Europe on vacation together with John if Ifind the money.
| A． | can | B． | might | C． | would | D． | need |
100℃ is the temperature ______ which water will boil.
| A．for | B．at | C．on | D．of |
The old man sat in front of the television every evening, happy _____ anything that happened to be on.
| A．to watch | B．watching | C．watched | D．to have watched |
---Did you ask Sophia for help?
---Ineed to-I managed perfectly well on my own.
| A． | wouldn't | B． | don't | C． | didn't | D． | won't |