Who did the teacher have _______ how _______ the computer?
#60812
A
to show, to use
B
showed, use
C
shown, using
D
show, to use
推荐题目
Robots _______ do housework instead of people in the future.
#51958
A
will be able to
B
will can
C
could
D
were able to
She got up early this morning _______ catch the first bus. 
#54313
A
in order to
B
in order that
C
in order for
D
whether