[ Modal Verbs & Perfect Infinitive ]
. I called her twice, but no answer. She _______ (be) busy.
A. must have been
B. could be
C. might be
D. should be
Random Topics:
Passive and Active VoiceFirst ConditionalPassive Voice - Present TensesGerunds and InfitinitivesGrammar and PrepositionTake or PutPast Tense and NeutralAdjective ClausePronouns ( Interrogative )Grammar - Collective NounsOther quiz:
Conditional Sentence › ViewIf the cat hides in the tree, the dog _________________ it.
A. would find
B. find
C. won’t find
D. had found
Tenses › View
The tourism sector …… out of the need to have physical holiday agencies.
A. evolves
B. is evolving
C. have evolved
D. have been evolving
Grammar › ViewThe following is an example of which type of error?
The dogs attacked the men because they were dangerous.
A. subject-verb agreement
B. comma splice
C. run-on sentence
D. dangling modifier
Tenses › View
She doesn’t often ___ coffee.
A. drink
B. drinks
C. is drinking
D. drank