46. this water was safe to be drunk
47.some grammatical rules are difficult to be explained
48.finding a good goverment employee isn't easy in this country
49.this mororcycle was very difficult to be ridden 
50. Abolishing corruption is difficult to be done
Lai  tus cho tớ dc ko ạ???
Nếu dc thì cho tớ xin thêm vé flow, kb nha!!
mơn cậu nhìu
#ßɨ๓_ chúc cậu hk tốt^^