Please don’t disturb Tom! He is busy now, with a lot of work ____.
| A．done with | B．to do with |
| C．doing with | D．to be done with |
. The biggest problem for most plants, which ___ just get up and run away when threatened, is that animals like to eat them.
| A．shan’t | B．can’t | C．needn’t | D．mustn’t |
In crowded places like airports and railway stations, you __________ take care of your luggage.
| A．can | B．may | C．must | D．will |
The teacher __________ have thought Johnson was worth it or she wouldn’t have wasted time on him, I suppose.
| A．should | B．can | C．would | D．must |
The weather turned out to be fine yesterday. I __________ the trouble to carry my umbrella with me.
| A．should have taken | B．could have taken | C．needn’t have taken | D．mustn’t have taken |
You know he is not going to let us leave early if we __________ get the work done.
| A．can’t | B．may not | C．shouldn’t | D．mustn’t |