----- Nội dung dịch tự động từ ảnh ----- XII. Put the verbs in the present perfect or past perfect. Sometimes you need the negative. 1. Who is that woman? I __________ (never/ see) her before. 2. The house was dirty. They __________ (clean) it for weeks. 3. There was no sign of a taxi, although I __________ (order) one half an hour before. 4. You can have that newspaper. I __________ (finish) with it.
