My mother and father are on the sofa.
#29562
A
grandparent
B
grandparents
C
parents
D
parent
推荐题目
How many________ do you need to finish this article?
#29314
A
paper
B
papers
C
piece of papers
D
pieces of paper
What ________ news it is! Nobody _________it. 
#28748
A
a surprising; believes
B
surprising; believes
C
a surprised; believe
D
surprised; believe