A) could
B) might
C) should
D) can
E) must

A) might
B) must
C) can
D) should
E) could

A) work
B) go
C) sing
D) be
E) do

A) listen
B) walk
C) go
D) work
E) play

A) relax at home
B) a balanced diet
C) study all night
D) sleep all the day
E) exercise all the days

A) goodest
B) gooder
C) the better
D) more good
E) better

A) worse
B) the baddest
C) the worse
D) the worst
E) the badder

A) are going to be
B) going to
C) will be
D) be going
E) will

A) progressive
B) present
C) past perfect
D) past
E) present perfect

A) nouns
B) verbs
C) adverbs
D) adjectives
E) prepositions