keep on one's toes
быть бдительным, внимательным
Mark tried to keep on his toes during a grammar test.
Другие идиомы:
- keep track of (someone or something)
- keep one's own counsel
- keep one's ear to the ground
- keep good time
- put one's toe in the water
- keep up with the news
- keep cool
- keep up with the times
- keep off (something)
- keep books
- keep up an act
- keep a civil tongue
- on one's toes
- keep one's chin up
- keep a close watch over (someone or something)