My father shows me how _____ a camera.
#49744
A
use
B
to use
C
using
D
used
推荐题目
I find it very hard           the question.
#50173
A
to answer
B
answers
C
answering
D
answered
The problem is         difficult for me        work out.
#51005
A
very; to
B
enough; to
C
so; that
D
too; to