现在完成时态练习题4页.docx

现在完成时态练习题一 填空1.I _ (do) my homework already.2.He _(not finish) his homework yet.3.We _ never _ (see) this book before.4.Mother _ just _(clean) the house.5.Sally _(visit) China before.二 选词选用for和since填空:1.We havent seen each other _ a long time.2.His father has been in the Party _ 10 years ago.3.The film has been on _ 20 minutes.4.Mr Green has worked here _ he came to China.5.His grandpa has been dead _