It was April 29,2011 ________ Prince Wil

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问题选择题

It was April 29,2011 ________ Prince William and Kate Middleton walked into the palace hall of the

wedding ceremony.[ ]

A. that

B. when

C. since

D. before

答案

答案：B

填空题

用所给词的适当形式填空。

1. —Shall we ____ _ (go) to the park?

—All right.

2. Why not _______ (get) a camera?

3. How about _______ (watch) TV?

4. Let’s ____ (have) supper at 6:30.

5. Why don’t you ____ (ask) your parents about it?

选择题

下列叙述正确的是[ ]

A．明矾[KAl(SO₄)₂12H₂O]在水中能形成Al(OH)₃胶体，可用作净水剂

B．浓H₂SO₄有强氧化性，常温下不与Fe、Al发生反应

C．金刚石是自然界中硬度最大的物质，不可能与氧气发生反应

D．将SO₂通入品红溶液，溶液褪色后加热恢复原色；将SO₂通入溴水，溴水褪色后加热也能恢复原色