A.must | B.should![]() | C.mustn't |
A.teacher![]() | B.policeman ![]() | C.doctor |
A.fight; on | B.fights; for | C.fight; for |
A.safety | B.safe | C.dangerous |
A.open | B.close | C.cover |
A.not raw | B.cook | C.cooked |
A.You can | B.You mustn't | C.You should |
A.walks home | B.walk home |
A.at; of | B.on; in | C.on; of |