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IDENTIFY THE USE OF EACH MODAL VERB, MATCHING ON THE SECOND COLUMN, THE VERB THAT CORRESPONDS TO THE SENTENCE.
1. Abe calls Lyla but she doesn't pick up, she must be working. a. ( Certainty., Polite Request., Obligation., Suggestion, Rational Probability. )
2. No problem, he can call her back later. b. ( Polite Request., Rational Probability., Obligation., Suggestion., Certainty. )
3. Abe asks if they could go out to dinner on Friday. c. ( Obligation., Certainty., Polite Request., Suggestion., Rational Probability. )
4. She says she may be in a meeting, Saturday is better. d. ( Suggestion., Rational Probability., Certainty., Polite Request., Obligation. )
5. He must be on time to make a good impression. e. ( Rational Probability., Certainty., Polite Request., Obligation., Suggestion. )