I found ______ not very difficult to keep away from the A/H1N1 Flu.
#54335
A
that 
B
this
C
one
D
it
推荐题目
 Is_____ your aunt?
#54807
A
he
B
she
C
his
D
her
________ is the population of the city?
#37937
A
How many
B
What
C
How many people
D
How much
---Michael,           do you go swimming?--- Twice a week.
#39726
A
how many
B
how long
C
how often
D
how soon