会英语的哥哥姐姐们帮一下忙

1>the doctor is a friend of mine.(保持原句意思)
the doctor is _one____ __of___ my friends.
<2>i player basketball, but now i don't.(保持原句意思)
i __used__ __to__ play basketball.

one of
am either

1.one of
2.used to
绝对正确。

one of

no longer

1.one of
2.used to

one of
used to