교재 117쪽
20. A: Did you call the airline to make a reservation?
B: Not yet, but I guess I ______________ by now.
(a) should
(b) should do
(c) should have
(d) should have done
교재 정답은 (c)로 표기되어 있는데, 제 생각엔 (d)인 것 같아서요. 확인 후 답변 부탁합니다.
교재 117쪽
20. A: Did you call the airline to make a reservation?
B: Not yet, but I guess I ______________ by now.
(a) should
(b) should do
(c) should have
(d) should have done
교재 정답은 (c)로 표기되어 있는데, 제 생각엔 (d)인 것 같아서요. 확인 후 답변 부탁합니다.

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