单项选择题
We expect all debts to be settled within seven days. Please note credit cards are not accepted.You can pay（）
A. by credit card within seven days. B. in weekly instalments. C. by cheque or cash within one week.
单项选择题 Order any stationery from this catalogue in June and receive a special free pen,（）
单项选择题 NOTICE FOR HOTEL GUESTS When car park is locked (midnight - 6 am), contact security guard for entry.（）
单项选择题 John, I haven't had a chance to phone Bill. Have you Liz（）
