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| 1.The teacher _____________ us how to swim already. (teach ) 2. _______ you ______ (have)your lunch ?
 When and where ________ you ________ (have)it ?
 3. —________the train _________(arrive) ?
 —Yes. It ________(arrive) here just now. It ________(leave ) in a few minutes.
 4. — Where _______ you _______ (be )? I didn’t see you just now.
 — I _________ ( go) to the school library
 5. Miss Yang used _______ ( be ) an English teacher, but now she’s a businesswoman .
 答案
 1. has taught 2.Have,had ,Did, have 3. Have ,arrived, arrived, will leave\is leaving
 4. have been, went 5. to be
 
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