keep on one's toes
быть бдительным, внимательным
Mark tried to keep on his toes during a grammar test.
Другие идиомы:
- keep an open mind about (something)
- keep on an even keel
- keep one's eye on the ball
- on one's toes
- keep (someone) out of one's hair
- keep up with (someone or something)
- keep down (something)
- keep up with the times
- keep good time
- keep one's opinions to oneself
- keep the lid on (something)
- dip one's toe in the water
- keep one's eyes open
- keep one's chin up
- keep one's head above water