[ Modal Verbs ]
He ________ be at the library, but I’m not sure.
A. could
B. must
C. can’t
D. has to

Random Topics:
Future Perfect TenseNouns FormationPresent Simple: affirmative, negative, interrogativeCoordinating Conjunctions and Comparative AdjectivesFuture Tense (will/be going to/p.continuous)Zero and First ConditionalsDependent PrepositionsGerund Subject or ObjectPrepositions of TimePresent Simple and Continuous TenseOther quiz:
Future Tenses › ViewWhen is Mary picking us up to take us to the airport?
A. 10 a.m.
B. 12 p.m.
C. 2 p.m.
D. 4 p.m.
Tenses › View
Which sentence is correct?
A. The cat sleep on the bed.
B. The cat sleeping on the bed.
C. The cat sleeps on the bed.
D. The cat slept on the bed.
Grammar › ViewShe __________ a meeting at the office this afternoon.
A. have
B. has
C. is having
D. has had
Grammar › View
Below are adjective, except ……
A. Golden
B. Garden
C. Green
