Jawaban:

1. i am older than putri,and siska is older than me. Im 12 years old. Putri,my sister,is 10 years old. siska is my elder sister,she is 16 years old.

2. the cart is slower than the motorcycle. The motorcycle can run at 80 kilometers per hour,and the horse cart can run only at 40 kilometers per hour.

3. i nought a beautiful pencil case yesterday for just fifteen thousand rupiahs. The pencil case is more beautiful but it is cheaper. The purse is simpler but it is more expensive.