2. Taxi drivers are being alerted ___ an escaped prisoner, who is believed to have robbed a gun and have been seen on the way to Frankfurt.
举一反三
- Only ____________ to have escaped being fined by the policeman. A: did some of the drivers seem B: some of the drivers seemed C: did seem some of the drivers D: seemed some of the drivers
- Had they been warned of the possible danger, they ______. A: may have escaped B: could have escaped C: must have escaped D: can have escaped
- The old king ______. They are making a new king. A: was believed to be killed B: is believed being killed C: is believed having been killed D: is believed to have been killed
- She narrowly escaped () in the bombing. A: to be killed B: killed C: being killed D: to have been killed
- That jewelry shop is reported ______ in broad daylight yesterday. A: robbed B: to be robbed C: having been robbed D: to have been robbed