Being young means having all kinds of possibilities, so you should challenge your limits and go ______ your boundaries

Mr. Li can’t attend the meeting on time _____ he takes the early flight to get there.

.He was deep in thought withhis eyes______ on the ceiling.

My cousin worked all winter vocation, saving money to______ his hobby of collecting stamps.

night the floor was wet with beerOne young technician slipped and bumped into another They struggled, ________trying to get the other in a head-lock