Make up the sentences with the following words and word combinations. 1. maintenance, to maintain relations;
2. to admit, admittance, admitting;
3. to order, an order;
4. to charge, a charge, charging;
5. to purchase, a purchase, purchaser;
6. to open an account in the bank, to transfer money to the account;
7. equal validity, valid;
8. to supply, supplement, supplier.