Grammar: Comparative and superlative degrees

Complete the sentences with the comparative or the superlative degree of the adjectives in the brackets. Press 'Check' to check your answers.
Example: It is more dangerous in the street than on the New York Subway.
1:: You are (safe) on the subway than at home.
2:: Cars are (convenient) than trains.
3:: Planes are (fast) than trains.
4:: Which station is the (deep) point of the Tube.
5:: Jane arrived (late) than John.
6:: I'm the (young) in our family.
7:: She bought the (cheap) watch in the shop.
8:: Bill won (much) money than Harry.