27.A.to B.through C.over D.for
26.A.practice B.routine C.process D.service
25.A.used B.promised C.deserved D.happened
24.A.climate B.scenery C.storm D.burden
23.A.order B.pay C.take D.search
22.A.forced B.refused C.adjusted D.gathered
21.A.break B.flood C.sink D.crash
19. might be expected, the answer to the question was very mixed.
A.As B.That C.It D.What
18.If their oxygen , the two British men a chance of surviving.
A.ran out, had B.didn’t run out, would have
C.had run out, didn’t have D.hadn’t run out, would have had