In note-taking, a strict discipline has to be kept and all inessential details ignored and unnecessary words eliminated .
A. In B. be kept C. ignored D. eliminated

Through exposure in air, water, and organic matter, rocks undergo changes known as weathering (风化).
A. Through B. in C. changes D. as

The students expressed their thanks to Prof. Davis by presenting him a parting gift.
A. thanks B. to C. by D. a parting

The twins are so much alike that it is difficult to distinguish them each other .
A. so much B. alike C. it D. each other

Reading between the lines , I should say the scientists are disappointed for the outcome of the research project, though they will not openly admit it.
A. between the lines B. should say C. for D. though

Of the best of my knowledge , he did very well in his previous job.
A. Of B. of C. knowledge D. in

One should not talk about unpleasant subjects for a social gathering. Also ,we should avoid any subject that might hurt the feelings of the people you are with .
A. for B. Also C. might D. with

Because of some of the representatives still not there, the conference is put off until further notice.
A. Because of B. still C. until D. further

The helicopter excels for military missions, carrying troops, guns and strategic instruments where other aircraft cannot go.
A. for B. carrying C. where D. aircraft

This test is intended to reinforce what you have learned for the past few weeks.
A. is intended B. what C. for D. few