Làm giúp mik với ​1.You (let) .... me know the minute you (hear)... any news. ​2. Do you understand what we (talk)....about. ​3. Well, I don't think I ever (see)... you before. ​4. I (go)... to meet him at the station but I didn't see him ​5. The old people often think of all the things thêy (do)... when they were young. ​6. I (not see)... him since last night. ​ ​ ​ ​