—______ is this? Is it a ruler?—Yes, it is a red ruler.
#41197
A
How
B
Who
C
What
D
What color
推荐题目
“This made me feel worried” is a kind of ________ structure.
#40841
A
S+V +P
B
S+ V+ DO
C
S+ V +O +OC
D
S+ V +IO +DO
“________ do you exercise?” “Three  times a week. ” 
#40818
A
How long
B
How often
C
How far
D
How many
______ is important for us ______ learn computer.
#40937
A
It, to
B
It, /
C
That, /
D
This, to