[ must/should ]
They … . Everything will be fine.
A. mustn’t worry
B. should worry
C. shouldn’t worry

Random Topics:
Modal Verbs for PossibilityBe Going To vs. WillNoun PhraseGrammarTOEFLPresent Simple and Present Continuous TensesModals for Necessity and SuggestionsAdjective OrderAnalogyGrammar - Place and MovementOther quiz:
Grammar › ViewShe ___ go to the toilet now.
A. may
B. might
C. not sure
Past Modals › View
Steve´s clothes were wet. He ______________ his umbrella.
A. must have forgotten
B. couldn´t have forgotten
Articles › View_______ police are here to help.
A. A
B. An
C. The
Conditional Sentences › View
If the traffic _______ bad, I may get home late
A. is
B. were
C. was
D. had been
