1) If you s________ something bad, you are in a situation where something painful happens to you.

2) She looks young, but she's __________ (实际上) 50 years old.

3) Luckily, nobody was killed in the accident and the i________ has been taken to a hospital.

4) The car was a _________ (便宜货) at that price.

5) He gave the children some chocolate to r________ them for behaving well.

6) The headmaster gave the _________（信号） to begin.

7) One cannot s_________ unless he tries hard.

8) She closed her eyes and ____________ (装作) to be asleep.

9）His order is really c__________ and I don’t know exactly what to do next.

10) She accepted his _____________(邀请) to join him for lunch.

2÷11的商是______，它是一个______小数，还可以写作______，把它保留三位小数是______．