cho tam giác vuông abc vuông tại a đường cao ah a)bh=1cm hc=4cm tính ab ac b)ah=5cm bh=7cm tính hc ac và các góc của tam giác abc

1)mary studies worse than her brother does

-) mary does not

2)nam really loves to play the piano

-)nam really enjoys 

3) no one in my group is more intelligent than van

-)van

4)she doesnt live with her grandparents any more

-) she used 

5) my mother was very tired she went to work 

-)althought

1)my sister doesn't enjoy playing badminton(interested)

2)its not a good idea for us to wear shorts when going to the pagoda(shouldn t)

3) we can also receive lucky money.We like tet because it is a long holiday(moreover)

4) I was in soc sơn i was lucky to join the giong festival(when)

5) people becom even busier than on ordinary days tet is considered a holiday(however)

mong mn giúp m ạ m cảm ơn