There might be life on other planets, but so far scientists haven’t found enough _____ to prove it.

A. evidenceB. relicC. mystery D. reception

They are having _____ debate about whether the two countries were at _____ war at the time.

A. the; the  B. a; theC. the; 不填D. a; 不填

I refuse to lie about it, because it’s against my _____.

A. rulesB. orders       C. principlesD. laws

The buses, _____ were already full, were surrounded by anxious people.

A. all of them   B. all of whichC. they allD. all which

The murderer, who was _____ to death by the judge last week, was only 20 years old.

A. made    B. caused

C. killed    D. sentenced

The black hero fought all his life to make black and white people _____.

A. fairB. sameC. equalD. legal

Only _____ people can have a good understanding of the lecture given by the scientist.

A. educatedB. devotedC. concernedD. relaxed

The politician was deeply hurt when many of his former supporters voted _____ him, and he lost his place in the government.

A. forB. toC. againstD. at

The kind lady devoted all her life to _____ those homeless children.

A. helpB. helpingC. be helpingD. being helped

A large number of people are _____, and how can the local government ignore the problem?

A. at work   B. in work   C. out of work   D. after work