50. My bag ......................... ten kilograms.

a) weighs b) ways c) weight d) made

51-.......................... we run, our hearts beat faster.

a) What b) When c) How d) Where

52. Many websites don't always give information ……………

a) healthy b) accurately c) quietly d) slowly

53. It's time for....................... the school bell rang.

a) leaving b) sleeping c) starting d) doing

54.......................... made the world easier and faster.

a) Smoking b) Sports c) Technology d) Exercise

55. Float is the opposite of ……………………………

a) think b) a sink c) sink d) thank

56......................... are your Sandals made in?

a) What b) Where c) When d) Which