[ Modal Verbs for Speculation ]
Who’s the person with Billy? Perhaps it’s his sister. The person with Billy_________________his sister.
A. Must be
B. Could be
C. need to
D. has to be

Random Topics:
Linking Verbs and TensesAsking & Giving OpinionTensesAdjective SuffixesPronounciation and GrammarConditional TypesQuantifiers: too many, too much & enoughModal Verbs of Deduction and SpeculationHabitual and Continuous TensesJobsOther quiz:
Grammar › ViewIf the firefighters —- on time, the building —– down completely
A. arrives, will not burn
B. had arrived, wouldn’t have burnt
C. arrived, would not burn
Grammar › View
Next year, my mom ______________ celebrate her 80th birthday.
A. will
B. is going to
C. will be
D. would
Tenses › ViewI had helped my neighbor before I fixed his car.
A. Future Perfect
B. Present Perfect
C. Past Perfect
Grammar › View
In the director’s opinion, it was high time the actress began to _____________her age.
A. BE
B. REACH
C. ACT
D. PERFORM
