解析：由is和for weeks可知，要用現(xiàn)在完成時態(tài)，排除B和C;又因It (The window) 與clean是被動關(guān)系，要用被動語態(tài)，所以選D。

　　5. —George and Lucy got married last week. Did you go to the wedding?

　　—No, I ______. Did they have a big wedding?

　　A. was not invited B. have not been invited

　　C. hadn’t been invited D. didn’t invite

　　解析：因為I與invite是被動關(guān)系，又因為邀請應(yīng)當(dāng)發(fā)生在結(jié)婚之前，got married是過去，invite就該是過去的過去，所以用過去完成時的被動語態(tài)，只有C正確。

　　6. The mayor of Beijing says that all construction work for the Beijing Olympics _____ by 2006.

　　A. has been completed B. has completed

　　C. will have been completed D. will have completed

　　解析：因“by+將來時間”通常與將來完成時連用，所以由by 2006可排除A和B;又因為work與complete是被動關(guān)系，所以要被動語態(tài)，只有C正確。

　　7. Be careful when you cross this very busy street. If not, you may ______run over by a car.

　　A. have B. get C. become D. turn

　　解析：you與run over是被動關(guān)系，選項中只有g(shù)et才可與過去分詞run構(gòu)成被動語態(tài)，故選B。

相關(guān)推薦:初中英語語態(tài)知識點：常用時態(tài)的被動語態(tài)

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