求救！！！！！！Help！！！！！！
帮忙解答几道题！
1.She wants to buy a TV_____a good price.
A.in B.for C.with D.at
2.She plays_____piano well,but she doesn't play____tennis well.
A./;the B./;/ C.the;/ D.the;the
3.I___a letter these days.
A.write B.writes C.writing D.am writing
参考答案:C
C
D