39/has changed
40/ are driving
41/ went or saw
42/ had done
43/I have not spoken to david since christmas
44/the water puppet show is performed in a pool
45/jim ' s brother plays saxophones better than him
46/The children often go swimming on sundays when they have much feree time
47/there are looking for the man and his dog that lost the way in the forest
48/he said he had not met his ex-girlfriend since they had left university
49/he should tell the truth to his parents about his problems
50/it was my parents that I telephoned to inform about the good news
xin hay nhất ạ
