28.- should I clean out the refrigerator?
-Twice a week.
A.How often
B.How soon
C.How for
D.How much
24.Tea to the Western world about 400 years ago.
A.is brought
B.was brought
C.was bought
D.is bought
28.- should I clean out the refrigerator?
-Twice a week.
A.How often
B.How soon
C.How for
D.How much
24.Tea to the Western world about 400 years ago.
A.is brought
B.was brought
C.was bought
D.is bought