. We should learn how to value what we have ______ it is too late.
145. What on _____ do you mean by saying so?
144. The reason why the two _____ cannot speak _____ language is that they were born in America and were brought up in a Japanese family.
143. We often hear the old man sighed with feeling “The younger don't know what hard work it is!”
142. Let's meet at the school at nine to morrow morning, shall we?.
141. Beds, chairs, tables and desks are ______.