[ Modals of Speculation and Deduction ]
Use a modal to make a past deduction in the following sentence: ‘The train arrived late, so it ____________ have been a signal problem.’
A. must have
B. should have
C. could have
D. might have

Random Topics:
ExclamationModals and Present TensesCompound AdjectivesGrammar and ReadingConditionalGerund vs InfinitivePresent ContinuousModals in the PastModals - Reported Speech - ConditionalsTOEIC Grammar and Vocabulary ReviewOther quiz:
Gerund Noun › ViewDavid tried his best ………., but his girlfriend refused
A. explaining; to listen
B. explaining; listening
C. to explain; to listen
D. to explain; listening
Tenses › View
He _____ (buy) a new car last week.
A. buys
B. bought
Vocabulary › ViewI’m going to _______________ my old clothes to the charity shop to help those in need.
A. change
B. get by
C. give away
D. run out of
Gerunds › View
Identify the gerund phrase:
After the accident, Laura was afraid of driving her car.
A. After the accident
B. Laura was afriad
C. Afraid of driving
D. driving her car
