1. I don't know where my children have picked up those rude words.
2. I wondered why she'd picked me up.
3. Why do you always pick on John?
4. The telephone rang just as I was about to pick up the receiver.
5. Try to eat your lunch, Jane, you've been picking at it.
6. Please, will you pick up my parcel at the post office as you pass?
7. The weak points in his arguments were eagerly picked on by his opponents.
8. It is not safe to travel by standing at the roadside hoping to be picked up by passing motorists.
9. The fruit shop lets pick out for yourself the apples that you want to buy.
10. Pick out the dress that you like best and I’ll buy it for your birthday.
11. Most of the times he just picks at his food.
2)means
3)is
4)is limited
5)isn't written
6)are written
7)passed