31.  They all had some question .

32.  some question is very easy to answer for us.

33.  I ever bought some English storybooks to read, st .

34.  I ill bring some question for us, we must take the base.

35.  sometimes, some question is very easy to answer or us .

36.  and prepare their lessons .Many people know the time is inportant , but they don't know how to use the time to do some useful thing .

37.  For some reason the bus didn't come until ten o'clock.

38.  Some of us, and some children, felt hungry.

39.  By the way, could you spare some time to correct my compositions after I finish then?

40.  For some reason the bus didn't come until ten o'clock.