— Could you give _______ an introduction to the new machine?— Of course. I will tell you how to use it. 
#11237
A
him
B
us
C
her
D
it
推荐题目
It’s said that the power plant is now ______large as what it was. 
#11667
A
twice as
B
as twice
C
twice much
D
much twice
I catch cold now and then.
#13656
A
always
B
occasionally
C
constantly
D
regularly