1 . His look was ________because the problem was ________.

A．puzzling; puzzled	B．puzzled; puzzling
C．puzzling; puzzling	D．puzzled; puzzled

2 . Patti looked ______ when I told her she had been elected chairman of the Students’ Union.

A．surprised

B．surprising

C．surprise

D．surprisingly

3 . The ______ look on her face suggested that this ______ problem really bothered her.

A．confused; confusing

B．confused; confused

C．confusing; confusing

D．confusing; confused

4 . It is quite difficult to make everyone ________.

A．satisfy

B．satisfied

C．satisfying

D．to satisfy

5 . The problem is so ______ that I’m ______ about it.

A．puzzling; puzzling	B．puzzling; puzzled
C．puzzled; puzzled	D．puzzled; puzzling

6 . ______that he failed in the exam, Jack seemed quite ______.

A．To know; disappointing	B．Knowing; disappointed
C．Knowing; disappointing	D．To know; disappointed

7 . When the little girl was asked such a ________ question, she stood there with a ________ look on her face.

A．puzzling; puzzling	B．puzzled; puzzling
C．puzzled; puzzled	D．puzzling; puzzled

8 . I am_____that Peter is guiltless unless you can show me _____evidence.

A．convincing; convincing	B．convinced; convinced
C．convinced; convincing	D．convincing; convinced

9 . The question is so hard, and we’re getting________.

A．confuse

B．confusing

C．confused

D．confusion