As students, we should work hard and do ________ best to realize our dreams. 
#37874
A
us
B
our
C
ours
D
ourselves
推荐题目
 – Why did they help Mrs Brown with her work? – Because she was _____.
#38438
A
an old friend of them
B
the friend of them
C
a the their friend
D
a good friend of theirs