13.were i a foreigner, i (pay) ... a visit to hoi an
14.she (phone) .. me were she not to know my house's address
15.you wouldn't have had so many accidents if you (drive) ... more slowly
16.i (bring) .. you some beer if i had known that you were thirsty
17.if i had known that you couldn't eat octopus, i (not buy) ... it
18.if you (wear) .. a false beard, nobodywoul have recognized you
19.if the story hadn't been true , the newspaper (not print) ... it
20.if you ... (arrive) ten minutes earlier, you would have got a seat
21.had she worked much harder, she (be) ... home and dry
22.if mary had taken these pills, she (feel) ... better today
23.if i (finish) ... the report yesterday, i would go out now
24.you could answer this question if you (go) ... over your lesson last night
25.if my students (got) .. up earlier this morning, they would not be late for school
26.that boy (pass)... the exam now if he had not been addicted to online games