[ Past Modals ]
Maria looked upset this morning. She  ___ failed the exam.
A. might have
B. shouldn’t have

Random Topics:
Toeic VerbModal Verbs & Perfect Infinitive“Put” Phrasal VerbModalsanother/the others/each other/one anotherAuxiliary VerbsSubjective and Objective PronounConjunctivesSentence StructureAdjectives, Adverbs, and PrepositionsOther quiz:
Grammar › ViewFortunately, the check-up was less unpleasant experience than I had expected.
A. correct
B. incorrect
Modals › View
It is not worth going to bed if he _____ at five.
A. have to get up
B. must have got up
C. needn’t have got up
D. doesn’t have to get up
Comparison Degree & Gerunds › ViewIt was cold and rainy yesterday, so we postponed .. the botanical gardens
A. going
B. go
C. went
D. to go
Grammar › View
I can’t find my keys anywhere
I____have lost them
A. can’t
B. must
C. might
