Ill. Fill in the blanks with appropriate modal auxiliary verbs. Choose the letter of
the correct answer.
21. My grandmother is eighty-five, but she
still read and write without
glasses. (Ability)
a. can
C. may
b. could
d. will
22.
.. I come with you?
a. can
c. migth
b. could
d. will
23.
you help me with the housework, please? (Polite request)
a. could
c. should
b. might
d. will​