Circle the letter of the correct word to complete each sentence. In some sentences, both are correct.
A: Professor McKeon says that we're going to have a very high inflation rate next year.
B: He be right. He knows more about economics than anyone I know.
a.must b. could
3. A: Have you heard anything from Ed? Is he still on safari in Africa?
B: He be, or he already be on his way home. I'm just not sure.
a.must ... must b. may ... may
4 A: Is that a famous celebrity over there in the middle of that crowd?
B: It be. She's signing autographs.
a.must b. might
4 A: Isn't Peter Reeves a banker?
B: Yes. Why don't you talk to him? He be able to help you with your loan.
a.must b. may
5 A: Is Margaret's daughter sixteen yet?
B: She be I saw her driving a car, and you have to be at least sixteen to get a driver's license.
a.must b. might
6 A: Overall, don't you think the possibility of world peace is greater now than ever before?
B: It be I don't know. Political relationships can be fragile.
a.must b. may
7 A: What's the matter with my son, doctor? Why does he cough and sneeze every day?
B: He's allergic to something. It dust in the house, or certain foods, or pollen in the air, or something else. It's hard to know, so we'll do some tests to find out.
a.must be b. may be