[ Modal Verbs ]
She _______ have been the one who ate the last piece of cake. She doesn’t like cakes.
A. can’t
B. mustn’t
C. had to

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Perfect Modals › ViewPatty ____________been at the mall last night. She was out of town visiting her mother.
A. couldn’t have
B. must have
C. mustn’t have
D. could have
Preposition › View
We want to see a big increase ……………….. productivity.
A. of
B. in
C. with
D. on
Grammar › ViewShe………..a good job some day if she………. really hard from now..
A. will have / works
B. has / will work
D. has / works
D. has / works
Grammar › View
Thanat__________his teeth before breakfast every morning.
A. will clean
B. is cleaning
C. cleans
D. clean
