Yesterday I fell playing basketball and I think I ___ my ankle.
may/ might/ could have sprained
He ___ win the competition. He's the best by far.
must
The light in Scot's room was on last night. He ___ computer games.
must have been playing
He ___ German very well. He has lived in Germany for only a few weeks.
can't speak
A: The burglar broke into our home in daylight. B: Then, some of the neighbours ___ him.
may/ might / could have seen
I ___ a lot as an accountant, but the job was just too boring.
may/ might/ could have earned
