—— Bob has gone to California. —— Oh, ca
问题:
—— Bob has gone to California.
—— Oh, can you tell me when he _____?
A.has left
B.left
C.is leaving
D.would leave
—— Bob has gone to California.
—— Oh, can you tell me when he _____?
A.has left
B.left
C.is leaving
D.would leave