—May I come in? I’m sorry I am late.—Come in, please tell me .A、why you are late again B、what were you doingC、who did you talk with
— ______ is the library from our school? —It’s quite near. Just go ________ the road.
— Can you tell me ____________? — It happened at 3:00 pm.
— TV was invented in _________ century. — Is that true?
—When _________ personal computers _____________? —In 1976.
—Must I finish my work today? —No, you ____________. You _____________ finish it tomorrow.