—Why did you leave the lights burning?
问题:
—Why did you leave the lights burning?
—Heavens! I guess I to turn them off.
A.would forget
B.had forgot
C.forgot
D.have forgot
—Why did you leave the lights burning?
—Heavens! I guess I to turn them off.
A.would forget
B.had forgot
C.forgot
D.have forgot