根据句意用所给词的适当形式填空?
根据句意用所给词的适当形式填空.
1.He is used to ___________ (shop) with his mother on sunday.
2.He used to _____________ (swim) when he was achild .
3.His idea is _____________ (difference) from othevsr .
4.You‘re not supposed to eat ordinr while____________（have）a class.
5They have pretty _________（relax）rules there.