1. Should I donate money for the flooded area in Quang Binh now ? He asked.

-> He wondered...................................................................................................

2. My father drove carefully. He didn't want to cause  accidents. (so that)

->...........................................................................................................................

3. He promised to stop smoking soon. (give up)

-> He.......................................................................................................................

4. '' How old is your litter boy?''.

-> She asked me.....................................................................................................

Cho tam giác ABC có AB = 4,5 cm, AC = 6 cm, BC = 7,5 cm. Phân giác góc B (D thuộc AC). Tìm tỉ số lượng giác của góc ABD