Topics: Modal Auxiliaries and Similar Expressions
Which sentence expresses future certainty?
A. The system might crash if we don’t fix the bug.
B. The system will crash if we don’t fix the bug.
C. The system may crash if we don’t fix the bug.
D. The system could crash if we don’t fix the bug.
Select your answer:

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Present Perfect › ViewCarlos ______ (not, use) his inhaler regularly before the new prescription.
A. has not used
B. did not use
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Vocabulary › View
We decided to _________ for the weekend to explore the countryside.
A. take a trip
B. take a taxi/bus
C. stay at a hotel
D. buy a souvenir
