Unit III must

Task 1

Define meanings of must while matching the items on the right to the items on the left.
What's the noise? It must be raining.
You must take your shoes off in here.
The wires must touch or it won't work.
You mustn't worry-yu'll be fine.
I must have left my wallet in the car.
In order to qualify for the job, you must have had several years' experience.
You mustn't have had any driving convictions or you won't get the job.
You must visit us one day.
He must be ill.
Can I smoke here?- If you must.