–“Where’s Professor Keane?”
– “He ____________ Australia and he will give us a talk when he ____________ back.”
A.has been to / comes
B.has gone to / will come
C.has been to / will come
D.has gone to / comes
– “He ____________ Australia and he will give us a talk when he ____________ back.”
A.has been to / comes
B.has gone to / will come
C.has been to / will come
D.has gone to / comes
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Hóa Học lớp 12
