[ Modals ]
You _____ tip waiters in Estonia but it’s nice if you do it.
A. don’t have to
B. mustn’t

Random Topics:
Present Perfect & Past Simple TenseParallel Structure or Combining SentencesGrammar: MorphologyGrammar ElementaryNouns as AdjectivesSentence TypesReported Speech and Reported QuestionsConditionalsThird ConditionalSimple Past Tense (was/were)Other quiz:
Simple Past & Past Progressive › ViewI… on the ice while I was crossing the street in front of the dorm.
A. was slipped
B. slipping
C. had slipped
D. slipped
All, Both, Neither, None, Either › View
A: Do you use a computer to do your homework or do you write it by hand?
B: I do __________. It depends on which subject it is.
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A. none
B. all
C. both