Choose the best variant

Erica ….have gone out. I can't see her.
1. could
2. must
3. need
He looks tired. He might have ___ awake all night.
1. could
2. an
3. has
4. been
I think James must have ___ all the milk. There's none left.
1. drank
2. drinking
3. drink
4. drunk
Look at Lilly's suntan. She must have ___ somewhere hot on vactaion.
1. been going
2. goes
3. go
4. gone
She's late. She may have ___ the wrong road.
1. has
2. taked
3. took
4. taken