By far, there are many problems ________ to be solved.
38. --- What are you going to do tomorrow? --- I will go _____ with my friends on the lake.
37. He blew 10 dollars on a dinner. The underlined word probably means _____.
36. The entrance is _____ with such heavy stones as two or three big men can’t move.
35. The poor old man _____ blind when he was very young.
34. ----There's something wrong with the machine. Who is _____? -----None. The machine is too old to work.