[ Conditional Sentences with Modal Verbs ]
If we don’t book our tickets in advance, we _________ guarantee seats for the concert.
A. shouldn’t
B. mustn’t
C. can’t
D. might not
Select your answer:

Random Topics:
Future FormsPassive Voice of TensesTenses and Passive VoicePast Simple or Past ContinuousSome & AnyAdverbs of DegreeGerunds & Infinitives + VocabularySo or SuchPresent Perfect ContinuousCoordinate ConjunctionOther quiz:
Grammar › ViewExcuse me. This phone is __________. You forgot to take it with you.
A. your
B. yours
C. mine
D. my
Tenses › View
They ______ a significant breakthrough in their research last month.
A. was achieving
B. have achieved
C. achieved
