[ Tag Question ]
The cases of COVID 19 outside China have increased 13 fold,________?
A. will they
B. haven’t they
C. hasn’t they
D. did they

Random Topics:
Modals: Possibility, Necessity, ExpectationProgressive TensePresent Perfect and Present Perfect Progressive TensesConjunctions, Interjections and DeterminersPresent ProgressiveSimple Present - WH QuestionsModals in the Past - Speculation and DeductionModal Auxiliaries and Similar ExpressionsGrammar: Reported QuestionsIndefinite and Intensive NounOther quiz:
Modal Auxiliary Verb › ViewIn California, you ___ have a driver’s license to drive a car.
A. Has to
B. Must
C. Don’t have to
D. Must not
Modal Verbs › View
I’m so hungry that I ……… eat a horse!
A. should
B. must
C. could
D. can’t
Grammar › ViewThere’s a chance ____ her appointment yesterday.
A. for her to have forgotten
B. forgetting
C. of her having forgotten
D. of her to forget
Simple Tenses › View
The following include time signals in the simple past tense, except…
A. Last month
B. Yesterday
C. Next year
D. Two days ago