1. When did you come to China? I arrived in 2011, it's been two years already. 
2. Where did you buy this apple?  (not sure??)&n ---(i bought from the sp;tore at the front)

Man: when did you come to China?
Woman: In 2011, I've been here for two years now

Man: where can these apples be bought?
Woman: previously, at the (?) store     correct：the store in front of me.

1. Boy: When did you come to China?
Girl: I came in 2011, it's already been two years.

2. Boy: Where were these apples bought from?
Girl: They were bought from behind the store.

1. Boy: When did you come to China?
    Girl: I came in 2011, I have already been here for 2 years.
2. Boy: Where did you buy these apples?
    Girl: I bought it at the store in the front.

1. Ni shi shen me shi hou lai Zhong Guo de? Wo shi 2011 nian lai de, yijing liang nian le.
= When will you come to China? In 2011, I came twice. 

2. Zhe xie ping guo shi zai nar mai de? Zai qian mian di shang dian mai de. 
= Where did you buy these apples? I bought it from the store.

Answer the question in chinese
对不去老师你什么意思？这个问题已经在普通话中了。

When did you come to China?
I came in 2011, it's been 2 years already. 
Where did you buy this apple?
I bought it in the opposite shop.

正确！

1. Male: When did you arrive in China?
    Female: I came in 2011, it has been two years.
2. Male: Where did you buy this apple from?
    Female: I bought it in the store at the front.

correct

1. Man: When did you come to China? 
Girl: I came in 2011. It's already been 2 years. 
2. Man: Where were these apples bought from? 
Girl: I bought it from the store at the front. 

correct