42. — How many days are there in a week?
— S days.
43. East or w , home is best.
44. We can’t live w water or air.
45. — Which do you p , tea or coffee?
— I like tea better.
46. This book b to me. That one is yours.
47. USA is the short form for the U States of America.
48. A g is someone who shows tourists around places such as museums or cities.
49. In China, men and women are e ; they have the same rights and opportunities as each other.