______ crossing the street, the old man was knocked down by a car.
举一反三
- ______ crossing the street, the old man was knocked down by a car. A: At B: In C: While D: On
- The old man ____ down the street with a dog.
- I was crossing the street and was almost _______ by car.
- Walking in the street, ______ . A: a bike had knocked him down B: he was knocked down by a bike C: a bike knocked him down D: he knocked down a bike
- The old man ________ down the street with a dog. A: looks B: for C: at D: walks