He warned the public to be ________ and report anything suspicious.
举一反三
- He warned me that I shouldn't believe anything that he says.He warned me______________________________________________.
- He warned ____ home.
- . After the recent bomb attacks, the public are being warned to be ______ at all times.
- Though_________of the danger, he still went skating on the thin ice. A: warning B: warn C: be warned D: warned
- He was warned not to _________, or he would be punished. A: cry B: fry C: dry D: try