Read and understand the sentences below. Encircle the letter of the modal verb that will complete the meaning of the sentence.
1. I _not be able to go to the football game. It depends on whether I can get the afternoon off from work.
a. Might
b. can
c. must
d. should
2. She never showed up. She have forgotten about our appointment
a. Can
b. must
c. could
d. would
3. have watched that horror movie, it gave me nightmares.
a. Must
b. cannot
C. shouldn't
d. might
4. I'm so thankful for your help with this project. I have done it without you!
a. Can
b. must
c. might not
d. couldn't
5. The repairs I made have fixed the problem, but they didn't-so I'll have to take another look.
a. Can
b. must
c. might
d. should​