[ Modal Verbs ]
You _________ have worked so hard last week. You look so tired now.
A. must not
B. ought not to
C. can’t

Random Topics:
Passive to ActiveComparative and Superlative AdjectivePhrases and ClausesPrepositions and ConjunctionsFuture Simple TensesSentence Fragments and Complete SentencesPronounciation and GrammarPresent Perfect Tense and Simple Past TenseDegrees of ComparisonGrammar: Imperative and Exclamatory SentencesOther quiz:
Modal Probability › ViewChoose the correct modal to complete the sentence: “Given the evidence, he ______ have committed the crime.”
A. must
B. might
C. can’t
D. should
Countable & Uncountable Nouns › View
There are a lot of in the sky.
A. star
B. stars
…. Henry, Brian and Peta visit the Central Park last summer?
A. Do
B. Are
C. Did
D. Is
General Knowledge › View
Mineral that enables blood to carry oxygen.
A. Calcium
B. Potassium
C. Iron
D. Magnesium
