-_______students are there in your class, Mr Li?  -Fifty. 
#60058
A
How old
B
How much
C
How many
D
What
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---Is she your mum, Helen?---________________.
#60139
A
Yes, it is.
B
Yes, she is.
C
Yes, he is.
D
No, she is.
_______you know this pretty girl?
#59818
A
Do
B
Are
C
Am
D
Is
 — I like math very much. Do you like math?— __________.
#59781
A
No, I do.
B
Yes, I do.
C
Yes, you are.
D
No, I am not.
I don’t think his daughter is able to mend a computer, ________?
#64924
A
does he
B
isn’t she
C
doesn’t he
D
is she