[ Modal Verbs ]
People _________ enter this cave and explore if they like.
A. can
B. could

Random Topics:
Modal Verbs of Certainty and PossibilityFuture FormsCausative VerbVerbs - third personVerbs of movementComparison and ModalsEs and SCorrelative conjunctionsVerb and PrepositionTypes of PhrasesOther quiz:
Perfect and Past Tense › ViewHave you… lunch?
A. has
B. had
C. was
D. have
Past Perfect Simple › View
When I got to the meeting, no one was there. They _____ it.
A. had already finished
B. have already finished
C. already finished
D. has already finished
Vocabulary › ViewShe was slim, svelte and…
A. sophistication
B. sophisticated
Grammar and Punctuation › View
Which sentence is the most formal?
A. The school would save so much money, wouldn’t it?
B. The school could end up better off financially.
C. The school would benefit from the financial savings.
D. It’s a great idea to save school funds!