1. One of the things that’s hard to get used to living in Japan is:
a. how close things are.
b. things how close.
c. things so close here.
The answer is ‘a,’ because it is a com construction best follows simple grammar: S + V + Complement (though this is reversed when using ‘how’ as a value reference to a quantity, in this case, in relation to distance):
Complement + S + V : How close (meaning “so close”) + things + are
Options ‘b’ and ‘c’ have no verbs, so cannot complete the sentence.
2. A thing that’s hard to get used to living in the US is:
a. no Family Mart close.
b. no Family Mart is close.
c. no near mart.
The answer is ‘b’ because it best follows simple grammar:
(no) family mart is close (S + V + Subject Complement)