题干
Miss White, please keep visitors off the meeting-room. A secret plan______ there.
A：is made
B：was made
C：is making
D：is being made
答案(点此获取答案解析）
D
A：is made
B：was made
C：is making
D：is being made
，平均每个鱼缸放多少条金鱼?
