`4.=>` Martha asked her brother where he was going on his birthday.
`5.=>` Nicky said that he didn't know where Bill was living then.
`6.=>` Miss Baker said to us that they had to do their homework every day.
`7.=>` Susan said that her parents left for London at 5p.m the previous day.
`8.=>` The teacher asked me if I had to done my project about space exploration.
`9.=>` Mr. Bao asked Lan if often she wrote letters to her pen pal.
`10.=>` Lien asked me what I was going to buy then.
`11.=>` I asked the Browns if the Browns were having a barbecue that night.
4 Martha asked her brother where he was going on his holidays
5 Nicky said he didn't know where Bill was living then
6 Miss Baker said that we had to do our homework every day
7 Susan said their parents had left for London at 5pm the day before
8 The teacher asked me if I had done my project about space exploration
9 Mr Bao asked Lan if she often wrote letters to her penpal
10 Lien asked me what I was going to buy then
11 I asked the Browns if they were having a barbecue that night
