The scientist Canada and he will give us a talk when he back. A. has gone to/comes B. ha

The scientist Canada and he will give us a talk when he back.
A. has gone to/comes
B. has been to/will come
C. has gone to/will come
D. has been to/comes

(答案→)A. has gone to/comes B. has been to/will come C. has gone to/will come D. has been to/comes解析：可联系答.案.网客服索取。

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