若(x-i)i=y+2i，x，y∈R，则复数x+yi=[ ]

A.-2+i

B.2+i

C.1-2i

D.1+2i

根据句意，用括号中所给词的适当形式填空。

1. The pretty girl              the first prize in yesterday's singing competition. (win)

2. It rained yesterday.            , I took an umbrella. (lucky)

3. The fish can't live             water. (with)

4. Many             come to China every year all over the world. (visit)

5. She is an             girl because she could swim when she was four. (usual)