do a lot of practice. there are no shortcuts.

आप कोन हो?

Short is not the correct word here. Long and short are generally used for length while big and small are generally used for size. Here we are talking about the size of the car. Hence, Nano is a small car.

क्या आप नेहा को जानते हैं?

brown

वह लड़की छोटी है।