题目内容
Indicate by Yesor No whether the verbs italicized in the sentences below could be properlychanged from simple past to past perfective, or vice versa:1.I ate my lunch after my wife came backfrom her shopping.
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A: What do you want all thosecorks for?B: I’ve bought a cask of wine and I _________ (bottle ) itmyself.
Your cold’s worse, Ann. Go backto bed and I ________ (ring) the school and tell them you can’t come.
It _______ (be) very late whenshe gets home, and her parents ________ (wonder) what’s happened.
This time next month the snow______ (melt) and skiing _____ (be) over.
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