[ Modal Verbs ]
What could have caused the delay in the project?
A. It must be the weather.
B. It could have been a lack of resources.
C. It may have been a misunderstanding.
D. It should have been completed on time.

Random Topics:
Grammar - Place and MovementSimple Present Continuous TenseFuture Tense (will/be going to/p.continuous)Parallel Structure or Combining SentencesBecause of & Inspite ofModals of PredictionLinking VerbGrammar : Must (Necessity)Can vs CouldTOEFL GrammarOther quiz:
Grammar › ViewWhich sentence uses the conjunction “so” correctly?
A. We missed the bus so we had to walk to school
B. We missed the bus so we had to walk to school.
C. We missed the bus, so we had to walk to school
D. We missed the bus, so we had to walk to school.
Adverb of Frequency and Past Continuous Tense › View
Indonesia __________ (always, celebrate) its independence day in August
A. always celebrate
B. always celebrates