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

发布时间：2020-08-16 07:50:03

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

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(答案→)A. has gone to/es
B. has been to/will e
C. has gone to/will e
D. has been to/es
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