1. There is no point _C_ in a dangerous place if you can t do anything _C_ the people who have to stay here.
A remaining helping B to remain to help
C in remaining to help D in remaining helping
there is no point in doing sth. 做某事也是毫無意義； 這裡point表示 作用，用途 。
2. Do most of us seeing people grasp casually the outward features of a face and _D_?
A let it alone B let alone C let well alone D let it go at that
seeing people 視力健全的`人； casually 隨意地，隨便地；
let is go at that表示 不去多操心，不再多說，隨它去了 。
3. The policemen went into action _C_ they heard the alarm.
A presently B promptly C directly D quickly
directly adv. 直接的； conj. 一 就 ，一當 時候。
表示 一 就 的幾個短語：as soon as, the instant, the moment, directly.
4. The cat is, _D_, a member of the family.
A as to speak B no wonder C as a fact D so to speak
so to speak 可以這麼說。
5. What can I do for you? If you _C_ see Mr. Keller, give him my regards.
A would B will C should D shall
regard n. 關心，致意，問候，考慮；
6. The Mayor and Corporation of Hamelin were _A_ for some way of ridding the town of rats.
