My grandfather doesn't know               to use a computer.
#59736
A
what
B
who
C
how
D
which
推荐题目
Look!The ground is wet.It must have rained last night,________?
#64477
A
hasn’t it
B
didn’t it
C
mustn’t it
D
hadn’t it
— I don’t think he is studying English in his room now.— Oh! ________?
#65409
A
Does he
B
Doesn’t he
C
Is he
D
Isn’t he
--- ________ do you stay at home at weekends?--- Ten hours.
#60115
A
How often
B
What time
C
How long
D
When