--I want you to tell me details of the accident. --Sorry, Jack ____ I know about it. You can ask the old man. A. both ; and B. either; or C. neither; nor
---Do you know when heFuzhou?
---Sorry,I don’t know. But I think he_______ us when he_______ .
A. will arrive; will call; arrives
B. will arrive; call; arrives
C. arrives; will call; will arrive