[ Modal Speculation ]
The cat _______ eaten all the food in its bowl.
A. were
B. have
C. did
D. has

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Modal Verbs › ViewI stayed in bed all day yesterday. I __________ go to work, it was my first summer day off.
A. couldn’t
B. needn’t have
C. didn’t need to
D. shouldn’t
Grammar of Conjunctions and Prepotitions › View
I had a cute puppy _____ I lost him.
A. and
B. although
C. so
D. but
Present Tenses › ViewMy little brother, Joe __________ his pajamas and brushed his teeth. He can go to bed now.
A. has worn
B. wears
C. is wearing
D. wore
Modal Verb › View
You ______ swim here. It is forbidden.
A. must
B. must not
C. can
D. cannot