20.It is no ____ arguing with Bill because he will never change his mind.

20.It is no ____ arguing with Bill because he will never change his mind.
A use B help C time D way
21.Put the ____ of your tongue against your upper teeth when you produce the sound.
A tip B top C peak D pole
22.It is beyond my ____ to search the criminal’s house,for I haven’t got permission from my superior.
A energy B power C force D ability
23.The two parties held the talk in a friendly _____ and reached an agreement.
A atmosphere B state C situation D phenomenon
24.According to news reports,personal _____ of guns in the USA causes a lot of trouble.
A wealth B possession C matter D problem
25.---Paul has gone abroad to try his luck.
--- In my _____,his decision is not wise.
A word B view C sight D way
26.Nowadays,few people form the habit of keeping a supply of candles in the house in case of power _______.
A drop B lack C absence D failure
27.The financial crisis has put the world economy in a difficult ______.
A occasion B condition C evaluation D situation
28.---What do you think of the project put forward by the Blacks?
---Considering its real ______,it will be well worth putting into practise,I suppose.
A reward B prize C cost D value
29.The lawyer advised him to drop the ____ since he stands little chance to win.
A case B event C incident D affair
30.A person of great ______ usually can achieve his goal.
A instruction B information C determination D recognition