---Listen! Someone is knocking at the door. Who _____it be?
---It _____be Tom. He phoned to visit me this evening.
A.may; may | B.may; shouldn’t | C.must; can | D.can; may |
---Listen! Someone is knocking at the door. Who _____it be?
---It _____be Tom. He phoned to visit me this evening.
A.may; may | B.may; shouldn’t | C.must; can | D.can; may |