Question

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1. Fill in the blanks with was able to, mustn't, have got to or must.
1. You .....______
... make noise in a hospital.
2. They______
... submit their forms by this afternoon.
3. He_______
.... Swim to the other end of the pond in minutes.
4. She__________
" leave for the airport immediately as she is already late.​

Answer 1

Explanation:

1. mustn't

2.must

3.was able to