1/ he asked Ba who wrote that book
2/ she asked me if i stayed at home everyday
3/ Hoa said she was very tired then
4 Lan asked her brother where she went every evening
5/ He asked me to come to his house for dinner
6/ We said the test wasn't easy enough for them to do
7/ He asked her How she felt that day
8/Nga said to us she had to do her homework
9/ Nam asked me to help him
10/ he told us to  open our books
11/ He asked me if i was student
12/ he siad they could swim in the sea very well that day
13/ she said she had to look after the hous then
14/ she asked lan where Lan learnt EL
15/ Tam's friend asked him how long he would stay in EL