Central Modal Auxiliaries
Quiz
Choose the correct answers to complete the gaps. What do the sentences express -- necessity or obligation?
Pete must be in love with Lilly. Just have a look at his face when he's talking about her.
- necessity
- obligation
You must have an awful toothache, Simon. I can see the pain in your eyes.
- necessity
- obligation
To keep perfectly healthy, you must eat a lot of fruit and vegetables and exercise a lot.
- necessity
- obligation
To stay completely out of trouble, we must stay away from Michael.
- necessity
- obligation
Well, I guess, Susan must know what she's doing.
- necessity
- obligation
You must be pulling my leg, Henry!
- necessity
- obligation
All the athletes must pass the following tests.
- obligation
- necessity
Sarah must learn to use a gun if she wants to be safe in this awfully dangerous neighbourhood.
- obligation
- necessity
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The Admiral must lead his men into a fierce battle soon.
- obligation
- necessity
We must cut down on our spendings or we'll go out of business in a year or so.
- obligation
- necessity
The attendees must turn up at the conference at 8.00 o'clock at the latest.
- obligation
- necessity
The service guy must repair the coffee machine as soon as possible. It keeps breaking down every single day.
- obligation
- necessity