精选优质文档-倾情为你奉上过去式与现在完成时练习1. We _ (enjoy) ourselves very much last week.2. When _ he _ (open) the window? He opened it two hours ago.3. He didnt come home early. He _ (come) home late.4. She _ (buy) a box of chalk yesterday.5. When _ he _ (meet) Lucy? Two weeks ago.6. He has already _ (have) his breakfast?7. What did he want? He _ (want) large envelopes.8. _ you _ (clea