There are usually 28 in a person’s mouth, so we should listen to the doctor’s ______ to protect（保护）them.
#44312
A
tooth, advice
B
teeth, advice
C
toothes, advices
D
teethes, advices
推荐题目
--- I hear a number of workers in the factory ______ out of work.--- Yes, and the number _______ quite huge.
#85700
A
are; is
B
is; are
C
is; is
D
are; are
Not only John and Tom but also their sister, Mary, _______ great interest in the piano lessons.
#85857
A
take
B
takes
C
have taken
D
had taken
--David has been away for more than 25 days． --I miss him very much．You know，25 days short．
#43560
A
is
B
isn’t
C
are
D
aren’t
Every student and every teacher ________.
#86253
A
are going to attend the meeting
B
have attended the meeting
C
has attended the meeting
D
is attended the meeting