15.
A. He found it unbelievable.
B. He was not surprised about it.
C. He found the truth unacceptable.
D. He was arrogant about it.
16.
A. Lend Marsha some reference materials.
B. Ask Marsha where the bookshelf is.
C. Check through the books on Marsha's shelf.
D. Ask Marsha if she has an extra bookshelf.