1.  The modern machine proved ______ in heart surgery.

2.Mr. Johnson and his ______ daughter do not always understand each other.

3.They ______ thought that the truth would be finally discovered.

4.They hardly believe that the apartment which costs them $ 4,000 is ______.

5.If a claim is kept ______, it is more likely to be recognized.

6.On his way to school he met ______, so he sent him to hospital.

7.She was operated a month ago but now she was ______.

8.What I would do is to go ______.

9.The chairman asked ______ to write their questions on a piece of paper and send them to the front.

10.   The price was very reasonable; I would gladly have paid ______ he asked.

11.     The trousers are ______, but Tom does not care a bit.

12.     She wore a dress to the party that was far more attractive than ______.

13.     he can play tennis better than ______ in the class.

14.     Kasia is taking her ______ tour of the shops in search of bargains.

15.     ______ the child expresses his interest in an activity, the stronger it will become.

16.     We'd better wait _______ , Peter and Tom will come very soon.

17.     although the medicine tastes ______, it seems to help my condition.

18.     When she got her first month salary, Diana bought herself ______ dress.

19.     The doctors have tried ______ to save the life of the wounded soldier.

20.     I was worried very much because I'll miss my flight if the bus arrives ______.