(51) Christmas is in the month of ( ). 1 September 2 October 3 November 4 December 正解 (52) ( ) is the day before Thursday. 1 Sunday 2 Monday 3 Tuesday 4 Wednesday 正解 (53) Mr. Brown has three ( ). One is a girl, and the other two are boys. 1 brothers 2 children 3 sisters 4 sons 正解 (54) There are twenty-four ( ) in a day. 1 hours 2 minutes 3 weeks 4 months 正解 (55) We use a ( ) when we talk with someone far away. 1 camera 2 telephone 3 letter 4 stereo 正解