Betty is going to London. But I don’t kn
问题:
Betty is going to London. But I don’t know ________.
A.when she sets off
B.when does she set off
C.when she will set off
D.when will she set off
Betty is going to London. But I don’t know ________.
A.when she sets off
B.when does she set off
C.when she will set off
D.when will she set off