keep on one's toes
быть бдительным, внимательным
Mark tried to keep on his toes during a grammar test.
Другие идиомы:
- keep one's distance from (someone or something)
- keep down (something)
- keep (someone) out of one's hair
- keep up with the news
- keep pace (with someone or something)
- dip one's toe in the water
- keep one's feet on the ground
- keep one's nose to the grindstone
- keep one's mouth shut
- keep house
- keep off (something)
- keep up an act
- keep from (doing something)
- keep harping on (something)
- keep one's shirt on