1. We/ not eat/ out/ since/ mom’s birthday.
⇒We haven't eaten out since our mom's birthday
2. How/ long/ you/ live/ here?
⇒How long have you lived here?
3. You/ ever/ been/ Russia?
⇒Have you ever been to Russia?
4. She/ not/ meet/ kids/ since Christmas.
⇒She hasn't met any kids since Christmas
5. They/ repair/ lamps/ yet?
⇒Have they repaired the lamps yet?
Chúc bạn học tốt!!!