Test of Auxiliary Verb

Fill in the blanks with suitable Modal Auxiliary verbs given in the brackets :-

1.  …….. I go out, sir?    (may/can)
2.  It ……… rain tonight. (may/can)
3. The patient ……….. take medicine in time. (should/might)
4. …….. God help you!  (may/might)
5. I ……… punish if you don`t behave yourself. (shall/will)
6. You …….. do your duty cheerfully. (should/must)
7.  I ……….. like to see that pen.   (would/might)
8.  we ……… not to walk on the grass.  (ought/should)
9. The work ……….. time and patience.  (need/needs)
10. They ………… to go swimming every morning.    (used/did used)
11. Work hard lets you ……… fail.   (should/would)
12. The box was so heavy that I ………. lift it.     (cannot/could not)
13. He prayed that God ……… give me prosperity.             (might/could)
14. You ……. keep your promise.    (should/ought)
15. He …….. punish the child.       (dare not/dares not)