Put the verbs in the right Tense-Form.

Swedish police - just (announce) that five paintings by Picasso - (steal) from Stockholm's Modern Museum. The paintings (value) by experts at 500 million kronor, (about 40 million euros). Police (believe) that they - (take) early on Saturday evening, but for some reason the museum's burglar alarm (not go off) and the theft (not discover) until Monday morning. No clues-(find) so far at the scene of the crime.