听力原文:M: How long has Moane been studying for his Ph. D.? Three years?W: At least that
听力原文:M: How long has Moane been studying for his Ph. D.? Three years?
W: At least that long.
What are they talking about Moane?
A.Moane will at least study three more years.
B.Moane began his Ph.D studies less than three years ago.
C.Moane has studied at least for three years.
D.Moane has already begun his Ph. D.long before.