[ Modal Verbs ]
She ___ seen the sign. It was right in front of her!
A. couldn’t have
B. might not have
C. may have
D. must have

Random Topics:
Superlative & Comparative AdverbsAdverbs, Prefixes, and SuffixesTenses and QuestionsModal Verbs - ObligationVerbs - third personArgumentative VocabularyVerb and PrepositionModal Verb in Passive Voiceas...as, comparatives, superlativesSimple Past TenseOther quiz:
Passive Voice › ViewThe office building _____ ____ ________ next year.
A. has been built
B. is being built
C. will be built
D. was built
Grammar - could / could not › View
Could you __________ when you were ten years old?
A. swam
B. swim
C. swum
D. swimming
Simple Past Tense › ViewHe passed his examination because he ……………………… very hard.
A. was studying
B. studies
C. studied
D. were studying
Grammar › View
I borrowed this bag from Jim. It is ________________ .
A. theirs
B. ours
C. hers
D. his
