[ Modal Auxiliaries ]
Years ago, people _________ only travel to Antarctica by ship.
A. could
B. must
C. may

Random Topics:
ConjunctionIdiom and TensesComparatives - Superlative-ed or -ingSimple Present and Past TenseModal Verbs for SpeculationPast Simple & Past PerfectGrammar - Present Perfect TenseAdverbs of Time and PlacePreposition and ConjunctionOther quiz:
Grammar › View Will they finish the test on time?
A. adjective
B. verb
C. noun
D. pronoun
E. adverb
Tenses › View
They plan to have a holiday in Bali in December.
In one month, they _____________ at the beach .
A. played
B. will play
C. will be playing
D. plays
