It takes years of practice to gain the skill of expert. [ ] A.不填,an B.a; the C.不
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![It takes years of practice to gain the skill of expert. [ ] A.不填,an B.a; the C.不](/pic/43_779902.jpg)
It takes years of ________ practice to gain the skill of ________ expert.
[]A.不填;an
B.a; the
C.不填;不填
D.不填;a
试题答案
答案:A
![It takes years of practice to gain the skill of expert. [ ] A.不填,an B.a; the C.不](/pic/43_779902.jpg)
It takes years of ________ practice to gain the skill of ________ expert.
[]A.不填;an
B.a; the
C.不填;不填
D.不填;a
答案:A