Question

3. He had been working for more than ten hours. He
(must/may) be tired.
4. I
(could/should) speak Arabic fluently when I was a child
and we lived in Morocco.
5. The teacher said we
(must/may) read this book for our
own pleasure as it is optional.
6. If you want to succeed quickly, you
(ought to be/must be
ready to work nearly hard.
7. When I was younger,
I
(could/can) jump higher.​

Answer 1

Answer:

3 - may

4- could

5 - must

6- must be

7 - could