I'm starting a new job next week, and I need to hit the ground running. ==> In this sentence, "hit the ground running" means:

It's been a long day. It's time to hit the sack. ===> In this sentence, "hit the sack" means:

I take the ten day weather forecast with a grain of salt. >In this sentence, "grain of salt" means:

After several years of making costly repairs, Tom decided to throw in the towel and buy a new washing machine. In this sentence, "THROW IN THE TOWEL" means:

The elephant in the room is Sam's gambling addiction. Here, ELEPHANT IN THE ROOM means:

Hold your horses—dinner will be served soon. In this sentence, "hold your horses" means: