. --- It’s the office! So you ______ know smoking is not allowed here. --- Oh, sorry.
Some people will not know ________ value of ________ friendship until they lose it
E-mail, which has been widely used in ________ recent years, is ________ good way of ________ communication
“Professor Wang is at work in ________ office” Miss Brown said in ________ low voice
_________ friend of my sister’s will come to see her tomorrow I’m wondering what ________ man he is going to be like
– Have you seen ________ pen? I left it here this morning – Is it ________ black one? I think I saw it somewhere a, the B) the, the C) the, a D) a, a