she spends two hours ___ the piano every day.該選什麼?爲什麼?

題目：

she spends two hours ___ the piano every day.該選什麼?爲什麼?
A.practising
B.practiced
C.to practise
D.to practiced

解答：

選：A
分析：
見牛津高階英漢雙解詞典,第二個意項
spend sth (on sth/ in doing sth):use (time,etc) for a purpose,花（時間等）在某事上/做某事
這裡還可以說,She spends two hours on piano every day.
或者,She spends two hours in practising the piano every day.
in可以去掉；至於爲什麼 practising,是把動詞 practise 變成了名詞性質的動名詞practising .