keep on one's toes
быть бдительным, внимательным
Mark tried to keep on his toes during a grammar test.
Другие идиомы:
- keep (someone) in stitches
- keep (something) to oneself
- keep abreast (of something)
- keep track of (something)
- keep an eye on (someone or something)
- keep on (doing something)
- keep quiet
- keep an open mind about (something)
- keep good time
- keep to oneself
- keep (someone or something) in check
- keep a cool head
- keep a close watch over (someone or something)
- dip one's toe in the water
- keep one's head