[ 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:
Grammar › ViewWhere can you buy very old furniture?
At the ___________
A. bakery
B. supermarket
C. antique shop
D. grocery shop
Adverb › View
Please don’t tell me what happened because I haven’t read the book ___ .
A. yet
B. still
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