By the time we arrive, they _____ left
A. Must have
B. Can have
C. Might have
D. Should have

Random Topics:
Modal Verbs in ConditionalsParallel Structure or Combining SentencesAdverbs, Prefixes, and SuffixesTime Clauses of FutureGerund or to InfinitiveHelpful Phrases Pronounciation and GrammarConditionals Type IPrepotitionsPhrasal Verb and ModalOther quiz:
Phrasal Verb › ViewDo you have Mike’s phone number?
Let me look it ___ on my phone.
A. into
B. forward to
C. for
D. up
Grammar › View
Jane: “Are you going to the dance on Friday?”Mary: “No, I’m not. I ….. school dances; they’re loud, hot and crowded!”
A. not enjoy
B. don`t enjoy
C. doesn`t enjoy
D. am not enjoying
Vocabulary › ViewI pledge — to the flag of the Vietnam. I swear to be loyal to my own country.
A. allegiance
B. abating
C. equivalent
D. resistance
Adverbial Clause of Cause and Effect › View
Identify the adverbial clause in the following sentence:
“I knew that I had come face to face with someone whose mere personalist was so fascinating that, if I allowed it to do so, it would absorb my whole nature, my whole soul, my very art itself.”
A. I knew that I had come face to face with someone whose mere personalist was so fascinating that
B. if I allowed it to do so, it would absorb my whole nature
C. my very art itself
D. my whole soul
