I’m sure that they had practiced hard for the games as they won a lot of medals.
A. They couldn’t have practiced hard for the games as they won a lot of medals
B. They must have practiced hard for the games as they won a lot of medals
C. They shouldn’t have practiced hard for the games as they won a lot of medals
D. They might have practiced hard for the games as they won a lot of medals.

Random Topics:
Gerunds, Infinitives and Modals of PossibilitySecond and Third ConditionalConjunctive Adverbs and PunctuationPaired ConjunctionPassive Modals, Impersonal PassivePresent Tense vs Present Continuous-Ing and Infinitive Verb PatternsSimple, Compound, Complex SentencesPast Simple and ContinuousConjunctions in Complex SentencesOther quiz:
Future Perfect Tense › ViewChoose the correct future perfect tense for the sentence: ‘By next month, they _______ (build) their new house.’
A. will build
B. will have build
C. built
D. will have building
Grammar - Future › View
Next week Frank and Teresa …………. (fly) to New York. They already bought tickets.
A. will fly
B. are going to fly
C. are flying
D. fly
Comparative Adjective › ViewThe durian is ___________ the rambutan.
A. the most expensive
B. expensiver than
C. more expensive than
Homophones › View
The words “mince” and “mints” are homophones.
A. True
B. False
