[ Modal Verbs ]
Which sentence uses a modal verb to express certainty in the present?
A. He could be at the library.
B. They must be tired after that long trip.
C. She might be late to the meeting.
D. You should be careful with that.
E. We can go to the park later.

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Demonstrative PronounsSecond Type ConditionalDefinite and Indefinite ArticleArticles - rulesPresent and Past Perfect TensesModals and Semi-ModalsGrammar - may & mightFirst ConditionalSimple Past vs Past Continuous TenseAdjectives (-ed / -ing)Other quiz:
Articles › ViewCan you play ______ guitar?
A. a
B. an
C. the
D. none
Vocabulary › View
This person can help if there is a problem with a car.
A. a waiter
B. a mechanic
C. a porter
D. a guard
Present Perfect Continuous › ViewI _______________ been ____________ the doorbell for ten minutes. I wonder if anyone is at home.
A. have…ringing
B. has…ringing
C. have…rung
D. has…rung
Grammar › View
What is the participle in the following sentence?
Shivering, the couple ran out of the rain and into the house.
A. shivering
B. couple
C. into
D. house
