[ Grammar ]
Frank passed the exam without studying for it. The exam …. very difficult.
A. must be
B. can’t have be
C. can’t have been

Random Topics:
Future SimpleAdjectivesSentence CompletionParticipal PhrasesComparative and Superlative AdjectivePassive Voice - Present ContinuousPresent Perfect, Present Simple, Present ContinuousConjunctions, Prepositions and InterjectionsComparative and Superlative AdjectivesPresent Simple with Adverbs of FrequencyOther quiz:
Grammar › View“Did you enjoy your holiday?” – “yes, we had ………..”
A. wonderful time
B. a wonderful time
Vocabulary › View
the removal of trees from an area
A. deforestation
B. malnutrition
C. sustainability
D. land reclamation
Tenses › ViewFuture Simple Tense
When will you return from your vacation?
A. I will return tomorrow.
B. I am returning tomorrow.
C. I returned tomorrow.
D. I will have returned tomorrow.
Tenses › View
The boys (play) soccer for half an hour when it started to rain.
A. are playing
B. were playing
C. have been playing
D. had been playing