Answers

B

1.  Bettina's (possessive form)

2.  hers (possessive, meaning the car was hers.)

3.  Mary's (plural of a proper noun, the name Mary)

4.  mothers-in-law (plural)

5.  babies' (plural possessive)

6.  sheep (the same singular as plural)

7.  mice (plural of mouse)

8.  stitches (plural)

9.  photos (plural)

10.  degrees; theses (plurals)

C

Numbers 3, 7, 9, 10 are correct.    Numbers 1, 2, 4, 5, 6, 8 are incorrect.

The correct combinations for those questions are:

1.  a banana

2.  this (or that) girl

4.  an orange

5.  he goes

6.  I do

8.  this (or that) furniture