to let up: to slacken, to lessen in intensity; to relax or ease one’s effort (also: related idiom: to take it easy) Examples of TO LET UP When Evie is working, she never lets up for a moment. Despite recent storms, the pain is not expected to let up anytime soon.

to stick to: to adhere to (a promise), to follow or obey (a set of rules, procedures, etc.) Examples of TO STICK TO All organizations expect their employees to stick to established work rules and procedures. If you try hard to stick to your principles, then you’ll be able to live up to them.

to hand in: to submit or deliver something that is due Examples of TO HAND IN All the sale people hand their weekly reports in on Friday. Every student has to hand in an original composition each week of the semester.

to take turns: to alternate, to change people while doing something Examples of TAKE TURNS The well-behaved children knew how to take turns on the swing set. The skiers had to take turns going down the slope.

used to: formerly did, had the habit of Examples of USED TO We used to go to the county fair every year when we were kids. I used to dream about becoming an astronaut and going into space.

to mix up: to stir or shake well; to confuse, to bewilder Examples of TO MIX UP We’re going to mix up the team, so we can make sure that you’re playing your strongest position. A wonderful hostess, Amy is always ready to mix up a pitcher of sangria whenever somebody comes by.