В Express the same idea using the Present Perfect. Use the verbs:
wake up, disappear, finish, be, leave, break
1. Jack started this portrait two weeks ago and he's still working on it.
Jack ... this portrait yet.
2. He can't find his mobile phone. It's not here.
His mobile phone ....
3. Oh, no. My car keys are still in my office.
I ... my car keys in the office.
4. Is this your first time in Moscow?
... you ... to Moscow before?
5. Is your brother still in bed?
... he ... yet?
6. I can't walk because my leg is aching.
I think I ... my leg.
wake up, disappear, finish, be, leave, break
1. Jack started this portrait two weeks ago and he's still working on it.
Jack ... this portrait yet.
2. He can't find his mobile phone. It's not here.
His mobile phone ....
3. Oh, no. My car keys are still in my office.
I ... my car keys in the office.
4. Is this your first time in Moscow?
... you ... to Moscow before?
5. Is your brother still in bed?
... he ... yet?
6. I can't walk because my leg is aching.
I think I ... my leg.