1.Please do not be ____ by his bad manners since he is merely trying to attract attention.
[A] disregarded [B] distorted
[C] irritated [D] intervened
2. Craig assured his boss that he would ____ all his energies in doing this new job.
[A] call forth [B] call at
[C] call on [D] call off
3. Too much ____ to X-rays can cause skin burns, cancer or other damage to the body.
[A] disclosure [B] exhibition
[C] contact [D] exposure
4. When confronted with such questions, my mind goes ____, and I can hardly remember my own date of birth.
[A] dim [B] blank
[C] faint [D] vain
5. It is well known that knowledge is the ____ condition for expansion of mind.
[A] incompatible [B] incredible
[C] indefinite [D] indispensable
[A] indistinctly [B] separately