1.It's very polite ___you to open the door for others
2.It's necessary ____them to bring enough food
3.It's useful ____him to learn to swim
4.It's nice ____her to tell me that.
1.It's very polite ___you to open the door for others
2.It's necessary ____them to bring enough food
3.It's useful ____him to learn to swim
4.It's nice ____her to tell me that.
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